100=b+13

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Solution for 100=b+13 equation:


Simplifying
100 = b + 13

Reorder the terms:
100 = 13 + b

Solving
100 = 13 + 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.
100 + -1b = 13 + b + -1b

Combine like terms: b + -1b = 0
100 + -1b = 13 + 0
100 + -1b = 13

Add '-100' to each side of the equation.
100 + -100 + -1b = 13 + -100

Combine like terms: 100 + -100 = 0
0 + -1b = 13 + -100
-1b = 13 + -100

Combine like terms: 13 + -100 = -87
-1b = -87

Divide each side by '-1'.
b = 87

Simplifying
b = 87

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