Question

Tìm x biết :

\(\dfrac{3x+2}{5x+7}=\dfrac{3x-1}{5x+1}\)

Answer 1

x = 3 nhá bạn

Answer 2

=>\(15x^2+3x+10x+2=15x^2-5x+21x-7\)

=>13x+2=16x-7

=>-3x=-9

=>x=3