3x+(4x+3)=87

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Solution for 3x+(4x+3)=87 equation: 



3x+(4x+3)=87

We move all terms to the left:

3x+(4x+3)-(87)=0

We get rid of parentheses

3x+4x+3-87=0

We add all the numbers together, and all the variables

7x-84=0

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

7x=84

x=84/7

x=12

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