Answer:
X = All Real Numbers
Step-by-step explanation:
Distribute: (6)(x) + (6)(−6) + x = (7)(x) + (7)(−7) +13
Multiply: 6x + −36 + x = 7x + −49 + 13
Combine like terms: (6x + x ) + (−36) = (7x) + (−49 + 13)
Simplify: 7x + −36 = 7x + −36
7x − 36 = 7x −36
Subtract 7 from both sides: -36 = -36
Add 36 to both sides: 0 = 0
