3+(x+80)=90

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Solution for 3+(x+80)=90 equation: 



3+(x+80)=90

We move all terms to the left:

3+(x+80)-(90)=0

We add all the numbers together, and all the variables

(x+80)-87=0

We get rid of parentheses

x+80-87=0

We add all the numbers together, and all the variables

x-7=0

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

x=7

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