15=-8b-1+9

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Solution for 15=-8b-1+9 equation:


Simplifying
15 = -8b + -1 + 9

Reorder the terms:
15 = -1 + 9 + -8b

Combine like terms: -1 + 9 = 8
15 = 8 + -8b

Solving
15 = 8 + -8b

Solving for variable 'b'.

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

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

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

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

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

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

Divide each side by '8'.
b = -0.875

Simplifying
b = -0.875

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