87=b+18

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Solution for 87=b+18 equation:


Simplifying
87 = b + 18

Reorder the terms:
87 = 18 + b

Solving
87 = 18 + b

Solving for variable 'b'.

Move all terms containing b to the left, all other terms to the right.

Add '-1b' to each side of the equation.
87 + -1b = 18 + b + -1b

Combine like terms: b + -1b = 0
87 + -1b = 18 + 0
87 + -1b = 18

Add '-87' to each side of the equation.
87 + -87 + -1b = 18 + -87

Combine like terms: 87 + -87 = 0
0 + -1b = 18 + -87
-1b = 18 + -87

Combine like terms: 18 + -87 = -69
-1b = -69

Divide each side by '-1'.
b = 69

Simplifying
b = 69

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