1,\(\left(\frac{7}{2}-2x\right).\frac{4}{3}=\frac{22}{3}\)
\(x.\left(\frac{7}{2}-2\right)=\frac{22}{3}:\frac{4}{3}=\frac{22}{3}.\frac{3}{4}=\frac{11}{2}\)
\(x.\frac{3}{2}=\frac{11}{2}\)
\(x=\frac{11}{2}:\frac{3}{2}=\frac{11}{2}.\frac{2}{3}=\frac{11}{3}\)
1)\(\frac{1}{2}x-\frac{3}{5}=-\frac{4}{5}\)
2) \(3\frac{1}{5}-2\frac{1}{3}x=-1\frac{3}{5} +1\frac{7}{10}\)
4)\(x-\frac{2}{3}.(-\frac{3}{7})=-\frac{9}{14}\)
5)\(-2\frac{1}{4}.(x-7\frac{1}{4})=-1,5\)
Lm đc bài nào thì giải giúp mik vs nha.
Tìm x:
a, x + 30%x = -1,31
b,\(\left(x-\frac{1}{2}\right):\frac{1}{3}+\frac{5}{7}=9\frac{5}{7}\)
c, \(\frac{1}{2}x-\frac{3}{4}=\frac{14}{9}.\frac{3}{7}\)
d,\(\frac{-5}{6}-x=\frac{7}{12}+\frac{-1}{3}\)
e,\(\frac{x+3}{-15}=\frac{1}{3}\)
f,\(\left(4,5-2x\right).\left(-1\frac{4}{7}\right)=\frac{11}{14}\)
GIÚP MIK LM TRONG TỐI NAY NHA, MAI MIK PHẢI NỘP RỒI
a) \(\frac{5}{7}+\frac{2}{7}:x=\frac{-11}{14}\)
b) \(\frac{2}{3}x-\frac{1}{2}x=\frac{5}{12}\)
c) \((x+\frac{1}{2})^2+\frac{17}{25}=\frac{26}{25}\)
d) \(-3\frac{3}{5}.x=\frac{4}{15}\)
Lm đc câu nào thì chỉ mik vs nha
câu 1:thực hiện phép tính (tính nhanh nếu có thể):
a, \(\frac{-7}{25}.\frac{11}{13}+\frac{-7}{25}.\frac{2}{13}-\frac{18}{25}\)
b,\(\frac{5}{7}.\frac{1}{3}-\frac{5}{7}.\frac{1}{4}-\frac{5}{7}.\frac{1}{12}\)
c,\(5\frac{2}{5}.4\frac{2}{7}+5\frac{5}{7}.5\frac{2}{5}\)
d,\(75\%-1\frac{1}{2}+0,5:\frac{5}{12}-\left(\frac{-1}{2}\right)^2\)
câu 2:tìm x biết:
a, \(x+\frac{1}{6}=\frac{-3}{8}\)
b, \(\frac{1}{2}x+\frac{1}{8}x=\frac{3}{4}\)
c,\(2-\left|\frac{3}{4}-x\right|=\frac{7}{12}\)
d,\(\left(2x-4,5\right):\frac{3}{4}-\frac{1}{3}=1\)
GIÚP MIK VS MAI MIK PHẢI NỘP BÀI RỒI!
B=\(\left(6\frac{4}{9}+3\frac{7}{11}\right)-4\frac{4}{9}\)
C=\(\frac{-5}{7}x\frac{2}{11}+\frac{-5}{7}x\frac{9}{11}+1\frac{5}{7}\)
D=\(0,7x2\frac{2}{3}x20x0,375x\frac{5}{28}\)
E=(-6,17+\(3\frac{5}{9}-2\frac{36}{97}\))x\(\left(\frac{1}{3}-0,25-\frac{1}{2}\right)\)
giúp mình gấp nha ai lam dc câu nào thì làm
a) \(\frac{-5}{2x}=\frac{15}{9}\)
b) \(\frac{7}{3}+\frac{4}{8}x=\frac{-11}{2}\)
c) \(\frac{-1}{4}+\frac{-4}{13}:x=\frac{-8}{6}+\frac{11}{-3}\)
d) \(3x+\frac{7}{3}x=\frac{1}{5}\)
Mình vừa nhận đc 30k từ trang lazi.vn , mình mới tiêu 20k thôi , còn 10k thì để cho 1 bạn trl đc tất cả các câu này
1, \(\frac{2}{9}.\left(x-\frac{9}{4}\right)+\frac{1}{2}=\frac{3}{7}.\left(7-\frac{1}{6}\right)+\frac{1}{3}\)
2, \(2.\left(\frac{3}{2}-x\right)-\frac{1}{3}=7x-\frac{1}{4}\)
3,\(-\frac{3}{2}.\left(5-\frac{1}{6}\right)+4.\left(x-\frac{1}{2}\right)=\frac{1}{2}+x\)
4,\(-\frac{5}{7}.\left(\frac{2}{5}-x\right)-\frac{1}{3}=\frac{1}{5}-\frac{3}{10}\)
5,\(4-\frac{2}{3}.\left(x-3\right)=2-\frac{1}{2}+\frac{2}{3}\)
6,\(\frac{2}{3}-\frac{5}{3}.x=\frac{7}{10}.x+\frac{5}{6}\)
7,\(3.\left(x-\frac{5}{3}\right)+\frac{1}{2}=2\left(x-\frac{1}{4}\right)+\frac{5}{2}\)
Phần nào có bn giải rầu các men đừng giải lại nha mk sẽ ko tk đâu chỉ tik những phần chưa lm
Bài 8: Tìm số nguyên x biết
a) \(\left(\frac{-12}{27}+\frac{2}{3}\right)+\frac{-2}{9}\le x\le\left(\frac{11}{7}+\frac{2}{5}\right)+\frac{7}{5}+\frac{3}{7}\) b\(\frac{-x}{2}+\frac{2x}{3}+\frac{x+1}{4}+\frac{2x+1}{6}=\frac{8}{3}\)
c)\(\frac{3}{2x+1}+\frac{10}{4x+2}-\frac{6}{6x+3}=\frac{12}{26}\)
Bài 15: Tìm x biết:
a, \(-\frac{3}{5}\times x=\frac{1}{4}+0,75\)
b, \(\left(\frac{1}{7}-\frac{1}{3}\right)\times x=\frac{28}{3}\times\left(\frac{1}{4}-\frac{1}{7}\right)\)
c, \(\frac{5}{7}\times x=\frac{9}{8}-0,125\)
d, \(\left(\frac{2}{11}+\frac{1}{3}\right)\times x=\left(\frac{1}{7}-\frac{1}{8}\right)\times36\)
