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8(x+9)+4=-2(x-1)-11
We move all terms to the left:
8(x+9)+4-(-2(x-1)-11)=0
We multiply parentheses
8x-(-2(x-1)-11)+72+4=0
We calculate terms in parentheses: -(-2(x-1)-11), so:We add all the numbers together, and all the variables
-2(x-1)-11
We multiply parentheses
-2x+2-11
We add all the numbers together, and all the variables
-2x-9
Back to the equation:
-(-2x-9)
8x-(-2x-9)+76=0
We get rid of parentheses
8x+2x+9+76=0
We add all the numbers together, and all the variables
10x+85=0
We move all terms containing x to the left, all other terms to the right
10x=-85
x=-85/10
x=-8+1/2
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