15-3b+6b=b+7

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Solution for 15-3b+6b=b+7 equation:


Simplifying
15 + -3b + 6b = b + 7

Combine like terms: -3b + 6b = 3b
15 + 3b = b + 7

Reorder the terms:
15 + 3b = 7 + b

Solving
15 + 3b = 7 + 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.
15 + 3b + -1b = 7 + b + -1b

Combine like terms: 3b + -1b = 2b
15 + 2b = 7 + b + -1b

Combine like terms: b + -1b = 0
15 + 2b = 7 + 0
15 + 2b = 7

Add '-15' to each side of the equation.
15 + -15 + 2b = 7 + -15

Combine like terms: 15 + -15 = 0
0 + 2b = 7 + -15
2b = 7 + -15

Combine like terms: 7 + -15 = -8
2b = -8

Divide each side by '2'.
b = -4

Simplifying
b = -4

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