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21-6(x-2)=27-8(x+1)
We simplify the equation to the form, which is simple to understand
21-6(x-2)=27-8(x+1)
Reorder the terms in parentheses
21+(-6x+12)=27-8*(x+1)
Remove unnecessary parentheses
+21-6x+12=+27-8+*(+x+1+)
Reorder the terms in parentheses
21-6x+12=27+(-8x-8)
Remove unnecessary parentheses
+21-6x+12=+27-8x-8
We move all terms containing x to the left and all other terms to the right.
-6x+8x=+27-8-21-12
We simplify left and right side of the equation.
+2x=-14
We divide both sides of the equation by 2 to get x.
x=-7
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