(7b-1)-3(2b+2)=-4

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Solution for (7b-1)-3(2b+2)=-4 equation:


Simplifying
(7b + -1) + -3(2b + 2) = -4

Reorder the terms:
(-1 + 7b) + -3(2b + 2) = -4

Remove parenthesis around (-1 + 7b)
-1 + 7b + -3(2b + 2) = -4

Reorder the terms:
-1 + 7b + -3(2 + 2b) = -4
-1 + 7b + (2 * -3 + 2b * -3) = -4
-1 + 7b + (-6 + -6b) = -4

Reorder the terms:
-1 + -6 + 7b + -6b = -4

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

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

Solving
-7 + 1b = -4

Solving for variable 'b'.

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

Add '7' to each side of the equation.
-7 + 7 + 1b = -4 + 7

Combine like terms: -7 + 7 = 0
0 + 1b = -4 + 7
1b = -4 + 7

Combine like terms: -4 + 7 = 3
1b = 3

Divide each side by '1'.
b = 3

Simplifying
b = 3

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