(5x+3x)+7=87

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Solution for (5x+3x)+7=87 equation: 



(5x+3x)+7=87

We move all terms to the left:

(5x+3x)+7-(87)=0

We add all the numbers together, and all the variables

(+8x)+7-87=0

We add all the numbers together, and all the variables

(+8x)-80=0

We get rid of parentheses

8x-80=0

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

8x=80

x=80/8

x=10

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