(15b-7)-7(2b+2)=-5

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Solution for (15b-7)-7(2b+2)=-5 equation:


Simplifying
(15b + -7) + -7(2b + 2) = -5

Reorder the terms:
(-7 + 15b) + -7(2b + 2) = -5

Remove parenthesis around (-7 + 15b)
-7 + 15b + -7(2b + 2) = -5

Reorder the terms:
-7 + 15b + -7(2 + 2b) = -5
-7 + 15b + (2 * -7 + 2b * -7) = -5
-7 + 15b + (-14 + -14b) = -5

Reorder the terms:
-7 + -14 + 15b + -14b = -5

Combine like terms: -7 + -14 = -21
-21 + 15b + -14b = -5

Combine like terms: 15b + -14b = 1b
-21 + 1b = -5

Solving
-21 + 1b = -5

Solving for variable 'b'.

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

Add '21' to each side of the equation.
-21 + 21 + 1b = -5 + 21

Combine like terms: -21 + 21 = 0
0 + 1b = -5 + 21
1b = -5 + 21

Combine like terms: -5 + 21 = 16
1b = 16

Divide each side by '1'.
b = 16

Simplifying
b = 16

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