Các câu hỏi tương tự
a,4x-10=0 b, 7-3x=9-x c, 2x-(3-5x) = 4(x+3)
d, 5-(6-x)=4(3-2x) e, 4(x+3)=-7x+17 f, 5(x-3) - 4=2(x-1)+7
g, 5(x-3)-4=2(x-1)+7 h,4(3x-2)-3(x-4)=7x+20
Giải các phương trình sau:a)frac{left(9x-0.7right)}{4}-frac{left(5x-1.5right)}{7}frac{left(7x-1.1right)}{3}-frac{5left(0.4-2xright)}{6}b)frac{3x-1}{x-1}-frac{2x+5}{x+3}1-frac{4}{left(x-1right)left(x+3right)}c)frac{3}{4left(x-5right)}+frac{15}{50-2x^2}-frac{7}{6left(x+5right)}d)frac{8x^2}{3left(1-4xright)^2}frac{2x}{6x-3}-frac{1+8x}{4+8x}
Đọc tiếp
Giải các phương trình sau:
a)\(\frac{\left(9x-0.7\right)}{4}-\frac{\left(5x-1.5\right)}{7}=\frac{\left(7x-1.1\right)}{3}-\frac{5\left(0.4-2x\right)}{6}\)
b)\(\frac{3x-1}{x-1}-\frac{2x+5}{x+3}=1-\frac{4}{\left(x-1\right)\left(x+3\right)}\)
c)\(\frac{3}{4\left(x-5\right)}+\frac{15}{50-2x^2}=-\frac{7}{6\left(x+5\right)}\)
d)\(\frac{8x^2}{3\left(1-4x\right)^2}=\frac{2x}{6x-3}-\frac{1+8x}{4+8x}\)
Giải phương trinh:
1,x8-x5+x2-x+1=0
2,\(\frac{1}{\left(2x-1\right)^2}-\frac{1}{\left(3x+1\right)^2}=\frac{4}{4\left(x+2\right)^2}\)
3, \(\frac{x\left(x^2-36\right)}{4-7x}-\frac{21x+1}{x^3+2}=4\)
4,\(\frac{4x^2+16}{x^2+6}-\frac{3}{x^2+1}=\frac{5}{x^2+3}+\frac{7}{x^2+5}\)
1) giải phương trình: a) left(2x+3right)left(frac{3x+8}{2-7x}+1right)left(x+5right)left(frac{3x+8}{2-7x}+1right)b) frac{7x+10}{x+1}left(x^2-x-2right)-frac{7x+10}{x+1}left(2x^2-3x-5right)0c) frac{2x+5}{x+3}+1frac{4}{x^2+2x-3}-frac{3x-1}{1-x}d) frac{13}{2x^2+x-21}+frac{1}{2x+7}+frac{6}{9-x^2}0e) frac{x-49}{50}+frac{x-50}{49}frac{49}{x-50}+frac{50}{x-49}f) frac{1+frac{x}{x+3}}{1-frac{x}{x+3}}3
Đọc tiếp
1) giải phương trình:
a) \(\left(2x+3\right)\left(\frac{3x+8}{2-7x}+1\right)=\left(x+5\right)\left(\frac{3x+8}{2-7x}+1\right)\)
b) \(\frac{7x+10}{x+1}\left(x^2-x-2\right)-\frac{7x+10}{x+1}\left(2x^2-3x-5\right)=0\)
c) \(\frac{2x+5}{x+3}+1=\frac{4}{x^2+2x-3}-\frac{3x-1}{1-x}\)
d) \(\frac{13}{2x^2+x-21}+\frac{1}{2x+7}+\frac{6}{9-x^2}=0\)
e) \(\frac{x-49}{50}+\frac{x-50}{49}=\frac{49}{x-50}+\frac{50}{x-49}\)
f) \(\frac{1+\frac{x}{x+3}}{1-\frac{x}{x+3}}=3\)
Giải phương trình:1) frac{7x-1}{6}+2xfrac{16-x}{5}2) frac{10x+3}{12}1+frac{6+8x}{9}3)frac{8x-3}{4}-frac{3x-2}{2}frac{2x-1}{2}+frac{x+3}{4}4)frac{3left(3-xright)}{8}+frac{2left(5-xright)}{3}frac{1-x}{2}-25)frac{2left(x-3right)}{7}+frac{x-5}{3}-frac{13x+4}{21}06)frac{6x+5}{2}-left(2x+frac{2x+1}{2}right)frac{10x+3}{4}7)frac{2x-1}{5}-frac{x-2}{3}-frac{x+7}{15}08)frac{x+4}{5}-x+4frac{x}{3}-frac{x-2}{2}giải giúp mik với ạ
Đọc tiếp
Giải phương trình:
1) \(\frac{7x-1}{6}+2x=\frac{16-x}{5}\)
2) \(\frac{10x+3}{12}=1+\frac{6+8x}{9}\)
3)\(\frac{8x-3}{4}-\frac{3x-2}{2}=\frac{2x-1}{2}+\frac{x+3}{4}\)
4)\(\frac{3\left(3-x\right)}{8}+\frac{2\left(5-x\right)}{3}=\frac{1-x}{2}-2\)
5)\(\frac{2\left(x-3\right)}{7}+\frac{x-5}{3}-\frac{13x+4}{21}=0\)
6)\(\frac{6x+5}{2}-\left(2x+\frac{2x+1}{2}\right)=\frac{10x+3}{4}\)
7)\(\frac{2x-1}{5}-\frac{x-2}{3}-\frac{x+7}{15}=0\)
8)\(\frac{x+4}{5}-x+4=\frac{x}{3}-\frac{x-2}{2}\)
giải giúp mik với ạ
13 tháng 2 2020 lúc 9:40
a) \(\frac{7x}{8}-5\left(x-9\right)=\frac{20x+1,5}{6}\)
b) \(\frac{5\left(x-1\right)+2}{6}-\frac{7x-1}{4}=\frac{2\left(2x+1\right)}{7}-5\)
c) \(\frac{3\left(x-3\right)}{4}+\frac{4x-10,5}{10}=\frac{3\left(x+1\right)}{5}+6\)
d) \(\frac{2\left(3x+1\right)+1}{4}-5=\frac{2\left(3x-1\right)}{5}-\frac{3x+2}{10}\)
Giai phương trình sau:
a) \(\frac{2\left(x-4\right)}{3}+\frac{4\left(x-3\right)-x+1}{8}=\frac{3\left(2x-3\right)}{5}-7\)
b)\(x-\frac{10-7x}{6}+1=\frac{x}{2}+\frac{3\left(x-1\right)+2-x}{9}\)
2 tháng 7 2020 lúc 17:37
ĐẠI SỐ 1. Giải các phương trình sau :a) frac{25x-655}{95}-frac{5left(x-12right)}{209}frac{89-3x-frac{2left(x-18right)}{5}}{11}b) frac{8left(x+22right)}{45}-frac{7x+149+frac{6left(x+12right)}{5}}{9}frac{x+35+frac{2left(x+50right)}{9}}{5}c) frac{x+frac{2left(3-xright)}{5}}{14}-frac{5x-4left(x-1right)}{24}frac{7x+2+frac{9-3x}{5}}{12}+frac{2}{3}2. Giải các bất phương trình sau :a) 5+frac{x+4}{5} x-frac{x-2}{2}+frac{x+3}{3}b) x+1-frac{x-1}{3} frac{2x+3}{2}+frac{x}{3}+5c) frac{left(3x-2right)^2}{3}-fr...
Đọc tiếp
ĐẠI SỐ
1. Giải các phương trình sau :
a) \(\frac{25x-655}{95}-\frac{5\left(x-12\right)}{209}=\frac{89-3x-\frac{2\left(x-18\right)}{5}}{11}\)
b) \(\frac{8\left(x+22\right)}{45}-\frac{7x+149+\frac{6\left(x+12\right)}{5}}{9}=\frac{x+35+\frac{2\left(x+50\right)}{9}}{5}\)
c) \(\frac{x+\frac{2\left(3-x\right)}{5}}{14}-\frac{5x-4\left(x-1\right)}{24}=\frac{7x+2+\frac{9-3x}{5}}{12}+\frac{2}{3}\)
2. Giải các bất phương trình sau :
a) \(5+\frac{x+4}{5}< x-\frac{x-2}{2}+\frac{x+3}{3}\)
b) \(x+1-\frac{x-1}{3}< \frac{2x+3}{2}+\frac{x}{3}+5\)
c) \(\frac{\left(3x-2\right)^2}{3}-\frac{\left(2x+1\right)^2}{3}\le x\left(x+1\right)\)
d) \(\frac{2x+3}{4}-\frac{x+1}{3}\ge\frac{1}{2}-\frac{3-x}{5}\)
1, |x-5|=|2x-9|
2, ||2x-11|-x|=8
3, |4x-7|+\(\left|\frac{7-4x}{4x-7}\right|\)=9
4, \(\frac{\left|7x^2-9x+2\right|}{5x+4}\)=2-7x
5, \(\frac{x^2-8x+15}{\left|2x^2-9x-5\right|}\)=3x-9