12-b+7b=7b+15

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Solution for 12-b+7b=7b+15 equation:


Simplifying
12 + -1b + 7b = 7b + 15

Combine like terms: -1b + 7b = 6b
12 + 6b = 7b + 15

Reorder the terms:
12 + 6b = 15 + 7b

Solving
12 + 6b = 15 + 7b

Solving for variable 'b'.

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

Add '-7b' to each side of the equation.
12 + 6b + -7b = 15 + 7b + -7b

Combine like terms: 6b + -7b = -1b
12 + -1b = 15 + 7b + -7b

Combine like terms: 7b + -7b = 0
12 + -1b = 15 + 0
12 + -1b = 15

Add '-12' to each side of the equation.
12 + -12 + -1b = 15 + -12

Combine like terms: 12 + -12 = 0
0 + -1b = 15 + -12
-1b = 15 + -12

Combine like terms: 15 + -12 = 3
-1b = 3

Divide each side by '-1'.
b = -3

Simplifying
b = -3

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