3b+7=2b-8

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Solution for 3b+7=2b-8 equation:


Simplifying
3b + 7 = 2b + -8

Reorder the terms:
7 + 3b = 2b + -8

Reorder the terms:
7 + 3b = -8 + 2b

Solving
7 + 3b = -8 + 2b

Solving for variable 'b'.

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

Add '-2b' to each side of the equation.
7 + 3b + -2b = -8 + 2b + -2b

Combine like terms: 3b + -2b = 1b
7 + 1b = -8 + 2b + -2b

Combine like terms: 2b + -2b = 0
7 + 1b = -8 + 0
7 + 1b = -8

Add '-7' to each side of the equation.
7 + -7 + 1b = -8 + -7

Combine like terms: 7 + -7 = 0
0 + 1b = -8 + -7
1b = -8 + -7

Combine like terms: -8 + -7 = -15
1b = -15

Divide each side by '1'.
b = -15

Simplifying
b = -15

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