7b+2b=-5-4

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Solution for 7b+2b=-5-4 equation: 


Simplifying
7b + 2b = -5 + -4

Combine like terms: 7b + 2b = 9b
9b = -5 + -4

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

Solving
9b = -9

Solving for variable 'b'.

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

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

Simplifying
b = -1

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