(9b-3)-2(4b+2)=-4

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Solution for (9b-3)-2(4b+2)=-4 equation:


Simplifying
(9b + -3) + -2(4b + 2) = -4

Reorder the terms:
(-3 + 9b) + -2(4b + 2) = -4

Remove parenthesis around (-3 + 9b)
-3 + 9b + -2(4b + 2) = -4

Reorder the terms:
-3 + 9b + -2(2 + 4b) = -4
-3 + 9b + (2 * -2 + 4b * -2) = -4
-3 + 9b + (-4 + -8b) = -4

Reorder the terms:
-3 + -4 + 9b + -8b = -4

Combine like terms: -3 + -4 = -7
-7 + 9b + -8b = -4

Combine like terms: 9b + -8b = 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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