(19b-7)-9(2b+2)=-7

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Solution for (19b-7)-9(2b+2)=-7 equation:


Simplifying
(19b + -7) + -9(2b + 2) = -7

Reorder the terms:
(-7 + 19b) + -9(2b + 2) = -7

Remove parenthesis around (-7 + 19b)
-7 + 19b + -9(2b + 2) = -7

Reorder the terms:
-7 + 19b + -9(2 + 2b) = -7
-7 + 19b + (2 * -9 + 2b * -9) = -7
-7 + 19b + (-18 + -18b) = -7

Reorder the terms:
-7 + -18 + 19b + -18b = -7

Combine like terms: -7 + -18 = -25
-25 + 19b + -18b = -7

Combine like terms: 19b + -18b = 1b
-25 + 1b = -7

Solving
-25 + 1b = -7

Solving for variable 'b'.

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

Add '25' to each side of the equation.
-25 + 25 + 1b = -7 + 25

Combine like terms: -25 + 25 = 0
0 + 1b = -7 + 25
1b = -7 + 25

Combine like terms: -7 + 25 = 18
1b = 18

Divide each side by '1'.
b = 18

Simplifying
b = 18

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