Which of the following equations is equivalent to 4[x + 2(3x – 7)] = 22x – 65?
(a) 28x – 7 = 22x – 65
(b) 28x – 56 = 22x – 65
(c) 10x – 14 = 22x – 65
(d) 16x – 28 = 22x – 65

Relax

Respuesta :

4x + 4 ( 3x - 7)
distribute the 4 into (3x-7)
4x + 12x -28
16x - 28 = 22x -65
answer choice D

correct answer: (b) 28x – 56 = 22x – 65