-15+b-3=-9

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Solution for -15+b-3=-9 equation: 


Simplifying
-15 + b + -3 = -9

Reorder the terms:
-15 + -3 + b = -9

Combine like terms: -15 + -3 = -18
-18 + b = -9

Solving
-18 + b = -9

Solving for variable 'b'.

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

Add '18' to each side of the equation.
-18 + 18 + b = -9 + 18

Combine like terms: -18 + 18 = 0
0 + b = -9 + 18
b = -9 + 18

Combine like terms: -9 + 18 = 9
b = 9

Simplifying
b = 9

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