-12-4b=5b+15

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Solution for -12-4b=5b+15 equation:


Simplifying
-12 + -4b = 5b + 15

Reorder the terms:
-12 + -4b = 15 + 5b

Solving
-12 + -4b = 15 + 5b

Solving for variable 'b'.

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

Add '-5b' to each side of the equation.
-12 + -4b + -5b = 15 + 5b + -5b

Combine like terms: -4b + -5b = -9b
-12 + -9b = 15 + 5b + -5b

Combine like terms: 5b + -5b = 0
-12 + -9b = 15 + 0
-12 + -9b = 15

Add '12' to each side of the equation.
-12 + 12 + -9b = 15 + 12

Combine like terms: -12 + 12 = 0
0 + -9b = 15 + 12
-9b = 15 + 12

Combine like terms: 15 + 12 = 27
-9b = 27

Divide each side by '-9'.
b = -3

Simplifying
b = -3

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