b+8=2b+15

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Solution for b+8=2b+15 equation:


Simplifying
b + 8 = 2b + 15

Reorder the terms:
8 + b = 2b + 15

Reorder the terms:
8 + b = 15 + 2b

Solving
8 + b = 15 + 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.
8 + b + -2b = 15 + 2b + -2b

Combine like terms: b + -2b = -1b
8 + -1b = 15 + 2b + -2b

Combine like terms: 2b + -2b = 0
8 + -1b = 15 + 0
8 + -1b = 15

Add '-8' to each side of the equation.
8 + -8 + -1b = 15 + -8

Combine like terms: 8 + -8 = 0
0 + -1b = 15 + -8
-1b = 15 + -8

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

Divide each side by '-1'.
b = -7

Simplifying
b = -7

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