31+(x+4)=90

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Solution for 31+(x+4)=90 equation: 



31+(x+4)=90

We move all terms to the left:

31+(x+4)-(90)=0

We add all the numbers together, and all the variables

(x+4)-59=0

We get rid of parentheses

x+4-59=0

We add all the numbers together, and all the variables

x-55=0

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

x=55

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