Answer:
There are infinitely many solutions.
Explanation:
Step 1: Simplify:
First we need to combine like terms on the left-hand and right-hand side:
x + 7 = x + 7
Step 2: Subtract 7 from both sides:
(x + 7 = x + 7) - 7
x = x
Since we get x = x, this means that there are infinitely many solutions