87=18+3b

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Solution for 87=18+3b equation:



87=18+3b
We move all terms to the left:
87-(18+3b)=0
We add all the numbers together, and all the variables
-(3b+18)+87=0
We get rid of parentheses
-3b-18+87=0
We add all the numbers together, and all the variables
-3b+69=0
We move all terms containing b to the left, all other terms to the right
-3b=-69
b=-69/-3
b=+23

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