(x-4)+(x+4)=40

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Solution for (x-4)+(x+4)=40 equation: 



(x-4)+(x+4)=40

We move all terms to the left:

(x-4)+(x+4)-(40)=0

We get rid of parentheses

x+x-4+4-40=0

We add all the numbers together, and all the variables

2x-40=0

We move all terms containing x to the left, all other terms to the right

2x=40

x=40/2

x=20

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