Tìm x biết: \(\frac{x+1}{9}+\frac{x+4}{6}+\frac{x+5}{5}=\frac{x+2}{8}+\frac{x+3}{7}+\frac{x+6}{4}.\)
Bài 1 : Tìm x biết :
a, \(\left|\frac{3}{2}x+\frac{1}{2}\right|=\left|4x-1\right|\)
b, \(\left|\frac{5}{4}x-\frac{7}{2}\right|-\left|\frac{5}{8}x+\frac{3}{5}\right|=0\)
c,\(\left|\frac{7}{5}x+\frac{2}{3}\right|=\left|\frac{4}{3}x-\frac{1}{4}\right|\)
Bài 2 : Tìm x biết :
a, | 2x - 5 | = x +1
b, | 3x - 2 | -1 = x
c, | 3x - 7 | = 2x + 1
d, | 2x-1 | +1 = x
1. Tìm x, y biết: \(\frac{x+4}{7+y}=\frac{4}{7}\) và \(x+y=22\)
2. Tìm x biết: \(-\frac{15}{12}x+\frac{3}{7}=\frac{6}{5}x-\frac{1}{2}\)
Tìm x biết : \(\left(\frac{1}{7}x-\frac{2}{7}\right)\left(\frac{-1}{5}x+\frac{3}{5}\right)\left(\frac{1}{3}x+\frac{4}{3}\right)=0\)
Tìm x , biết :
a) \(\left(\frac{1}{7}x-\frac{2}{7}\right)\left(\frac{-1}{5}x+\frac{3}{5}\right)\left(\frac{1}{3}x+\frac{4}{3}\right)=0\)
b) \(\frac{1}{6}x+\frac{1}{10}x-\frac{4}{15}x+1=0\)
Tìm x biết \(\frac{x+4}{5}+\frac{x+2}{7}=\frac{x+5}{4}+\frac{x+7}{2}\)
Tìm x biết : \(\left(\frac{1}{7}x-\frac{2}{7}\right)\left(-\frac{1}{5}x+\frac{3}{5}\right)\left(\frac{1}{3}x+\frac{4}{3}\right)=0\)
Tìm x,y biết:
a,\(\frac{x+2}{327}+\frac{x+3}{326}+\frac{x+4}{325}+\frac{x+5}{324}+\frac{x+349}{5}+4=0\)=0
b, Tìm x biết \(|5x-3|-x=7\)
c, tìm số nguyên x biết:\(\frac{5}{x}+\frac{y}{4}=\frac{1}{8}\)
mong mn giúp cô mik bắt nộp
Tìm x biết
\(\frac{x+1}{x-2}=\frac{3}{4}\)
\(\frac{2x-3}{x+1}=\frac{4}{7}\)
Tìm x biết:
a) x. \(\frac{1}{2}.\frac{2}{3}=4\)
b) \(\frac{-2}{7}.\frac{5}{7}.x=\frac{7}{21}\)
c) \(\left(x-\frac{1}{2}\right).\left(2x-\frac{1}{3}\right)=0\)
d) \(\frac{x+1}{3}+\frac{x+1}{4}+\frac{x+1}{5}=0\)