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

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


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

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

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

Reorder the terms:
-4 + 7b + -3(4 + 2b) = -3
-4 + 7b + (4 * -3 + 2b * -3) = -3
-4 + 7b + (-12 + -6b) = -3

Reorder the terms:
-4 + -12 + 7b + -6b = -3

Combine like terms: -4 + -12 = -16
-16 + 7b + -6b = -3

Combine like terms: 7b + -6b = 1b
-16 + 1b = -3

Solving
-16 + 1b = -3

Solving for variable 'b'.

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

Add '16' to each side of the equation.
-16 + 16 + 1b = -3 + 16

Combine like terms: -16 + 16 = 0
0 + 1b = -3 + 16
1b = -3 + 16

Combine like terms: -3 + 16 = 13
1b = 13

Divide each side by '1'.
b = 13

Simplifying
b = 13

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