Question

2(x + 7) + 3x = 12 (given)

2x + 14 + 3x = 12 (?)
5x + 14 = 12 (simplify)
5x = -2 (subtraction)
x = -
2
5
(division)
What is the missing reason?

Answer 1

Distributive property

Step-by-step explanation: I just did it lol

Answer 2

`2(x + 7) + 3x = 12 \\ 2x + 14 + 3x = 12 \\ 5x + 14 = 12 \\ 5x = 12 - 14 \\ 5x = - 2 \\ (5x)/(5) = ( - 2)/(5) \\ x = ( - 2)/(5)`