Answer:
x = -14
Explanation:
Solve:
7x - 28 = 2(4x - 7)
7x - 28 = 8x - 14
Substrate 8x from both sides.
7x - 28 - 8x = 8x - 14 - 8x
-x - 28 = -14
Add 28 to both sides.
-x - 28 + 28 = -14 + 28
-x = 14
Divide both sides by -1.
-x/-1 = 14/-1
x = -14
Therefore x = -14