(15b-1)-7(2b+3)=-7

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Solution for (15b-1)-7(2b+3)=-7 equation:


Simplifying
(15b + -1) + -7(2b + 3) = -7

Reorder the terms:
(-1 + 15b) + -7(2b + 3) = -7

Remove parenthesis around (-1 + 15b)
-1 + 15b + -7(2b + 3) = -7

Reorder the terms:
-1 + 15b + -7(3 + 2b) = -7
-1 + 15b + (3 * -7 + 2b * -7) = -7
-1 + 15b + (-21 + -14b) = -7

Reorder the terms:
-1 + -21 + 15b + -14b = -7

Combine like terms: -1 + -21 = -22
-22 + 15b + -14b = -7

Combine like terms: 15b + -14b = 1b
-22 + 1b = -7

Solving
-22 + 1b = -7

Solving for variable 'b'.

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

Add '22' to each side of the equation.
-22 + 22 + 1b = -7 + 22

Combine like terms: -22 + 22 = 0
0 + 1b = -7 + 22
1b = -7 + 22

Combine like terms: -7 + 22 = 15
1b = 15

Divide each side by '1'.
b = 15

Simplifying
b = 15

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