Question

bài3

a,\(\frac{11}{12}-\left(\frac{2}{5}+x\right)=\frac{2}{3}\)

b,\(2x.\left(x\frac{-1}{7}\right)=0\)

c,\(\frac{3}{4}+\frac{1}{4}:x=\frac{2}{5}\)

bài 4:

a,|x-1,5|=2 b,|\(x+\frac{4}{15}\)|-|-3,75|=-|-2,15|

c,|\(x+\frac{3}{4}\)| - \(\frac{1}{2}\)=0