-3(b-(-7))=

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Solution for -3(b-(-7))= equation:


Simplifying
-3(b + -1(-7)) = 0

Multiply -1 * -7
-3(b + 7) = 0

Reorder the terms:
-3(7 + b) = 0
(7 * -3 + b * -3) = 0
(-21 + -3b) = 0

Solving
-21 + -3b = 0

Solving for variable 'b'.

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

Add '21' to each side of the equation.
-21 + 21 + -3b = 0 + 21

Combine like terms: -21 + 21 = 0
0 + -3b = 0 + 21
-3b = 0 + 21

Combine like terms: 0 + 21 = 21
-3b = 21

Divide each side by '-3'.
b = -7

Simplifying
b = -7

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