-72+9b=45

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Solution for -72+9b=45 equation: 


Simplifying
-72 + 9b = 45

Solving
-72 + 9b = 45

Solving for variable 'b'.

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

Add '72' to each side of the equation.
-72 + 72 + 9b = 45 + 72

Combine like terms: -72 + 72 = 0
0 + 9b = 45 + 72
9b = 45 + 72

Combine like terms: 45 + 72 = 117
9b = 117

Divide each side by '9'.
b = 13

Simplifying
b = 13

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