-7(b+7)=-84

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Solution for -7(b+7)=-84 equation:


Simplifying
-7(b + 7) = -84

Reorder the terms:
-7(7 + b) = -84
(7 * -7 + b * -7) = -84
(-49 + -7b) = -84

Solving
-49 + -7b = -84

Solving for variable 'b'.

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

Add '49' to each side of the equation.
-49 + 49 + -7b = -84 + 49

Combine like terms: -49 + 49 = 0
0 + -7b = -84 + 49
-7b = -84 + 49

Combine like terms: -84 + 49 = -35
-7b = -35

Divide each side by '-7'.
b = 5

Simplifying
b = 5

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