3(-9+b)=-15

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Solution for 3(-9+b)=-15 equation: 


Simplifying
3(-9 + b) = -15
(-9 * 3 + b * 3) = -15
(-27 + 3b) = -15

Solving
-27 + 3b = -15

Solving for variable 'b'.

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

Add '27' to each side of the equation.
-27 + 27 + 3b = -15 + 27

Combine like terms: -27 + 27 = 0
0 + 3b = -15 + 27
3b = -15 + 27

Combine like terms: -15 + 27 = 12
3b = 12

Divide each side by '3'.
b = 4

Simplifying
b = 4

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