-9=-3(b+4)

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Solution for -9=-3(b+4) equation:


Simplifying
-9 = -3(b + 4)

Reorder the terms:
-9 = -3(4 + b)
-9 = (4 * -3 + b * -3)
-9 = (-12 + -3b)

Solving
-9 = -12 + -3b

Solving for variable 'b'.

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

Add '3b' to each side of the equation.
-9 + 3b = -12 + -3b + 3b

Combine like terms: -3b + 3b = 0
-9 + 3b = -12 + 0
-9 + 3b = -12

Add '9' to each side of the equation.
-9 + 9 + 3b = -12 + 9

Combine like terms: -9 + 9 = 0
0 + 3b = -12 + 9
3b = -12 + 9

Combine like terms: -12 + 9 = -3
3b = -3

Divide each side by '3'.
b = -1

Simplifying
b = -1

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