-84=7(-4b-7)-7

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Solution for -84=7(-4b-7)-7 equation:


Simplifying
-84 = 7(-4b + -7) + -7

Reorder the terms:
-84 = 7(-7 + -4b) + -7
-84 = (-7 * 7 + -4b * 7) + -7
-84 = (-49 + -28b) + -7

Reorder the terms:
-84 = -49 + -7 + -28b

Combine like terms: -49 + -7 = -56
-84 = -56 + -28b

Solving
-84 = -56 + -28b

Solving for variable 'b'.

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

Add '28b' to each side of the equation.
-84 + 28b = -56 + -28b + 28b

Combine like terms: -28b + 28b = 0
-84 + 28b = -56 + 0
-84 + 28b = -56

Add '84' to each side of the equation.
-84 + 84 + 28b = -56 + 84

Combine like terms: -84 + 84 = 0
0 + 28b = -56 + 84
28b = -56 + 84

Combine like terms: -56 + 84 = 28
28b = 28

Divide each side by '28'.
b = 1

Simplifying
b = 1

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