2( x + 3) + 4( 2 – 2x ) = 2( x – 2) nhanh tay nha mn

Đáp án:

2( x + 3) + 4( 2 – 2x ) = 2( x – 2)

<=> 2x + 6 + 8 – 8x = 2x – 4

<=> 2x – 8x – 2x = – 4 – 6 – 8

<=> – 8x = – 18

<=> x = $\frac{-18}{-8}$ = $\frac{9}{4}$ 

~Xin hay nhất ạ~