(7b-9)-3(2b+2)=-5

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Solution for (7b-9)-3(2b+2)=-5 equation:


Simplifying
(7b + -9) + -3(2b + 2) = -5

Reorder the terms:
(-9 + 7b) + -3(2b + 2) = -5

Remove parenthesis around (-9 + 7b)
-9 + 7b + -3(2b + 2) = -5

Reorder the terms:
-9 + 7b + -3(2 + 2b) = -5
-9 + 7b + (2 * -3 + 2b * -3) = -5
-9 + 7b + (-6 + -6b) = -5

Reorder the terms:
-9 + -6 + 7b + -6b = -5

Combine like terms: -9 + -6 = -15
-15 + 7b + -6b = -5

Combine like terms: 7b + -6b = 1b
-15 + 1b = -5

Solving
-15 + 1b = -5

Solving for variable 'b'.

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

Add '15' to each side of the equation.
-15 + 15 + 1b = -5 + 15

Combine like terms: -15 + 15 = 0
0 + 1b = -5 + 15
1b = -5 + 15

Combine like terms: -5 + 15 = 10
1b = 10

Divide each side by '1'.
b = 10

Simplifying
b = 10

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