(7b-7)-3(2b+2)=-4

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Solution for (7b-7)-3(2b+2)=-4 equation:


Simplifying
(7b + -7) + -3(2b + 2) = -4

Reorder the terms:
(-7 + 7b) + -3(2b + 2) = -4

Remove parenthesis around (-7 + 7b)
-7 + 7b + -3(2b + 2) = -4

Reorder the terms:
-7 + 7b + -3(2 + 2b) = -4
-7 + 7b + (2 * -3 + 2b * -3) = -4
-7 + 7b + (-6 + -6b) = -4

Reorder the terms:
-7 + -6 + 7b + -6b = -4

Combine like terms: -7 + -6 = -13
-13 + 7b + -6b = -4

Combine like terms: 7b + -6b = 1b
-13 + 1b = -4

Solving
-13 + 1b = -4

Solving for variable 'b'.

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

Add '13' to each side of the equation.
-13 + 13 + 1b = -4 + 13

Combine like terms: -13 + 13 = 0
0 + 1b = -4 + 13
1b = -4 + 13

Combine like terms: -4 + 13 = 9
1b = 9

Divide each side by '1'.
b = 9

Simplifying
b = 9

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