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76=3x-8
We move all terms to the left:
76-(3x-8)=0
We get rid of parentheses
-3x+8+76=0
We add all the numbers together, and all the variables
-3x+84=0
We move all terms containing x to the left, all other terms to the right
-3x=-84
x=-84/-3
x=+28
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