3(-4b)+7b=-15

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Solution for 3(-4b)+7b=-15 equation: 


Simplifying
3(-4b) + 7b = -15

Remove parenthesis around (-4b)
3 * -4b + 7b = -15

Multiply 3 * -4
-12b + 7b = -15

Combine like terms: -12b + 7b = -5b
-5b = -15

Solving
-5b = -15

Solving for variable 'b'.

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

Divide each side by '-5'.
b = 3

Simplifying
b = 3

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