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5x+(x-2(x+4))=0
We calculate terms in parentheses: +(x-2(x+4)), so:We get rid of parentheses
x-2(x+4)
We multiply parentheses
x-2x-8
We add all the numbers together, and all the variables
-1x-8
Back to the equation:
+(-1x-8)
5x-1x-8=0
We add all the numbers together, and all the variables
4x-8=0
We move all terms containing x to the left, all other terms to the right
4x=8
x=8/4
x=2
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