9=-5b-4b

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Solution for 9=-5b-4b equation:


Simplifying
9 = -5b + -4b

Combine like terms: -5b + -4b = -9b
9 = -9b

Solving
9 = -9b

Solving for variable 'b'.

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

Add '9b' to each side of the equation.
9 + 9b = -9b + 9b

Combine like terms: -9b + 9b = 0
9 + 9b = 0

Add '-9' to each side of the equation.
9 + -9 + 9b = 0 + -9

Combine like terms: 9 + -9 = 0
0 + 9b = 0 + -9
9b = 0 + -9

Combine like terms: 0 + -9 = -9
9b = -9

Divide each side by '9'.
b = -1

Simplifying
b = -1

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