(19b-9)-9(2b+1)=-5

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Solution for (19b-9)-9(2b+1)=-5 equation:


Simplifying
(19b + -9) + -9(2b + 1) = -5

Reorder the terms:
(-9 + 19b) + -9(2b + 1) = -5

Remove parenthesis around (-9 + 19b)
-9 + 19b + -9(2b + 1) = -5

Reorder the terms:
-9 + 19b + -9(1 + 2b) = -5
-9 + 19b + (1 * -9 + 2b * -9) = -5
-9 + 19b + (-9 + -18b) = -5

Reorder the terms:
-9 + -9 + 19b + -18b = -5

Combine like terms: -9 + -9 = -18
-18 + 19b + -18b = -5

Combine like terms: 19b + -18b = 1b
-18 + 1b = -5

Solving
-18 + 1b = -5

Solving for variable 'b'.

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

Add '18' to each side of the equation.
-18 + 18 + 1b = -5 + 18

Combine like terms: -18 + 18 = 0
0 + 1b = -5 + 18
1b = -5 + 18

Combine like terms: -5 + 18 = 13
1b = 13

Divide each side by '1'.
b = 13

Simplifying
b = 13

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