-15b-40=-7b

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Solution for -15b-40=-7b equation:


Simplifying
-15b + -40 = -7b

Reorder the terms:
-40 + -15b = -7b

Solving
-40 + -15b = -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.
-40 + -15b + 7b = -7b + 7b

Combine like terms: -15b + 7b = -8b
-40 + -8b = -7b + 7b

Combine like terms: -7b + 7b = 0
-40 + -8b = 0

Add '40' to each side of the equation.
-40 + 40 + -8b = 0 + 40

Combine like terms: -40 + 40 = 0
0 + -8b = 0 + 40
-8b = 0 + 40

Combine like terms: 0 + 40 = 40
-8b = 40

Divide each side by '-8'.
b = -5

Simplifying
b = -5

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