Answer:
down below
Explanation:
7x = 6 + 15x + 15 - x
7x = 6 + 14x + 15
7x = 14x + 21
7x - 14x = 14x - 14x + 21
-7x = 21
-7x/-7 = 21/-7
x = -3
Hope this helps! :)
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