Các câu hỏi tương tự
bài 2 : Tìm y
a)\(\frac{37-2x\left(y-3,25\right)}{5}=7,06\)
b) 3/2 x y - 2/7 x ( x - 7/2 ) =18
c) 5/12 x ( 8 + x ) - 1/5x ( 15/4 + x ) =15
d) 13,44 x X - ( 1,6 + x ) x 0,5 -3,7 x ( x - 0,9 ) = 13,618
Ai làm được em tick 3 cái
Bài 2 : Tìm x , biết :
a) 3,25 + 0,9 - x = 0,97
b) 4,4 - 9,2 + x = 1,2
c) , \(\frac{7}{5}+x-\frac{2}{5}=4\)
d) \(1\frac{3}{4}+x-\frac{7}{8}=5\)
BÀI 2: tìm số hữu tỹ X , biết rằnga,frac{-3}{2}-2X+frac{3}{4}-22b, (frac{-2}{3}x-frac{3}{5})(frac{3}{-2}-frac{10}{3})frac{2}{5}c,frac{x}{2}-left(frac{3x}{5}-frac{13}{5}right)-left(frac{7}{5}+frac{7}{10}.xright)d,frac{2x-3}{3}+frac{-3}{2}frac{5-3x}{6}-frac{1}{3}e,frac{2}{3x}-frac{3}{12}frac{4}{5}-left(frac{7}{x}-2right)
Đọc tiếp
BÀI 2: tìm số hữu tỹ X , biết rằng
a,\(\frac{-3}{2}-2X+\frac{3}{4}=-2\)2
b, (\(\frac{-2}{3}x-\frac{3}{5}\))(\(\frac{3}{-2}-\frac{10}{3}\))=\(\frac{2}{5}\)
c,\(\frac{x}{2}-\left(\frac{3x}{5}-\frac{13}{5}\right)=-\left(\frac{7}{5}+\frac{7}{10}.x\right)\)
d,\(\frac{2x-3}{3}+\frac{-3}{2}=\frac{5-3x}{6}-\frac{1}{3}\)
e,\(\frac{2}{3x}-\frac{3}{12}=\frac{4}{5}-\left(\frac{7}{x}-2\right)\)
bài 2:tìm x phân số
a)\(x:\frac{5}{4}=\frac{9}{5}+\frac{1}{2}=?\) b)\(\left(x+\frac{3}{4}\right)x\frac{5}{7}=?\frac{10}{9}\)
Tìm x
\(a,x+\frac{15}{7}=\frac{9}{2}\)
\(b,x-\frac{3}{4}=\frac{7}{2}\)
\(c,x\times\frac{7}{8}=\frac{12}{5}\)
\(d,\frac{5}{6}:x=\frac{4}{3}\)
bài 1: tìm x:
a) \(x\cdot\frac{7}{9}=\frac{2}{3}+2\frac{1}{2}\) b) \(\frac{5}{7}+x:\frac{9}{4}=\frac{4}{3}\)
tìm x:
a) \(x-\frac{5}{7}-\frac{13}{14}=1\) b) \(\frac{3}{5}+x+1\frac{1}{5}=\frac{11}{3}\) c) \(x.\frac{4}{5}:2=\frac{6}{7}\) d) \(\frac{6}{5}:x:\frac{5}{4}=\frac{10}{15}\)
1.Tìm x, biết:a.frac{1}{2}xx+frac{2}{3}frac{5}{2}b.frac{x}{12}+frac{5}{24}frac{5}{6}c.(1234+x+766)x0,256,2:0,012.Tính bằng cách hợp lý.Afrac{1}{2}xfrac{5}{7}+frac{9}{7}x0,3+frac{1}{2}xfrac{4}{7}+frac{9}{4}+frac{9}{7}x0.2Bfrac{2002cdot15-1}{2001+2002cdot14}
Đọc tiếp
1.Tìm x, biết:
a.\(\frac{1}{2}\)x\(x\)+\(\frac{2}{3}\)=\(\frac{5}{2}\)
b.\(\frac{x}{12}\)+\(\frac{5}{24}\)=\(\frac{5}{6}\)
c.(1234+\(x\)+766)x0,25=6,2:0,01
2.Tính bằng cách hợp lý.
A=\(\frac{1}{2}\)x\(\frac{5}{7}\)+\(\frac{9}{7}\)x0,3+\(\frac{1}{2}\)x\(\frac{4}{7}\)+\(\frac{9}{4}\)+\(\frac{9}{7}\)x0.2
B=\(\frac{2002\cdot15-1}{2001+2002\cdot14}\)
1.Tìm x, biết:a.frac{1}{2}xx+frac{2}{3}frac{5}{2}b.frac{x}{12}+frac{5}{24}frac{5}{6}c.(1234+x+766)x0,256,2:0,012.Tính bằng cách hợp lý.Afrac{1}{2}xfrac{5}{7}+frac{9}{7}x0,3+frac{1}{2}xfrac{4}{7}+frac{9}{4}+frac{9}{7}x0.2Bfrac{2002cdot15-1}{2001+2002cdot14}
Đọc tiếp
1.Tìm x, biết:
a.\(\frac{1}{2}\)x\(x\)+\(\frac{2}{3}\)=\(\frac{5}{2}\)
b.\(\frac{x}{12}\)+\(\frac{5}{24}\)=\(\frac{5}{6}\)
c.(1234+\(x\)+766)x0,25=6,2:0,01
2.Tính bằng cách hợp lý.
A=\(\frac{1}{2}\)x\(\frac{5}{7}\)+\(\frac{9}{7}\)x0,3+\(\frac{1}{2}\)x\(\frac{4}{7}\)+\(\frac{9}{4}\)+\(\frac{9}{7}\)x0.2
B=\(\frac{2002\cdot15-1}{2001+2002\cdot14}\)