(7b-7)-2(3b+1)=-2

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Solution for (7b-7)-2(3b+1)=-2 equation:


Simplifying
(7b + -7) + -2(3b + 1) = -2

Reorder the terms:
(-7 + 7b) + -2(3b + 1) = -2

Remove parenthesis around (-7 + 7b)
-7 + 7b + -2(3b + 1) = -2

Reorder the terms:
-7 + 7b + -2(1 + 3b) = -2
-7 + 7b + (1 * -2 + 3b * -2) = -2
-7 + 7b + (-2 + -6b) = -2

Reorder the terms:
-7 + -2 + 7b + -6b = -2

Combine like terms: -7 + -2 = -9
-9 + 7b + -6b = -2

Combine like terms: 7b + -6b = 1b
-9 + 1b = -2

Solving
-9 + 1b = -2

Solving for variable 'b'.

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

Add '9' to each side of the equation.
-9 + 9 + 1b = -2 + 9

Combine like terms: -9 + 9 = 0
0 + 1b = -2 + 9
1b = -2 + 9

Combine like terms: -2 + 9 = 7
1b = 7

Divide each side by '1'.
b = 7

Simplifying
b = 7

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