(x+40)+(x+40)+x+x=440

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Solution for (x+40)+(x+40)+x+x=440 equation: 



(x+40)+(x+40)+x+x=440

We move all terms to the left:

(x+40)+(x+40)+x+x-(440)=0

We add all the numbers together, and all the variables

2x+(x+40)+(x+40)-440=0

We get rid of parentheses

2x+x+x+40+40-440=0

We add all the numbers together, and all the variables

4x-360=0

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

4x=360

x=360/4

x=90

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