(x-7)+(x-4)=20

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Solution for (x-7)+(x-4)=20 equation: 



(x-7)+(x-4)=20

We move all terms to the left:

(x-7)+(x-4)-(20)=0

We get rid of parentheses

x+x-7-4-20=0

We add all the numbers together, and all the variables

2x-31=0

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

2x=31

x=31/2

x=15+1/2

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