(19b-1)-9(2b+1)=-3

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Solution for (19b-1)-9(2b+1)=-3 equation:


Simplifying
(19b + -1) + -9(2b + 1) = -3

Reorder the terms:
(-1 + 19b) + -9(2b + 1) = -3

Remove parenthesis around (-1 + 19b)
-1 + 19b + -9(2b + 1) = -3

Reorder the terms:
-1 + 19b + -9(1 + 2b) = -3
-1 + 19b + (1 * -9 + 2b * -9) = -3
-1 + 19b + (-9 + -18b) = -3

Reorder the terms:
-1 + -9 + 19b + -18b = -3

Combine like terms: -1 + -9 = -10
-10 + 19b + -18b = -3

Combine like terms: 19b + -18b = 1b
-10 + 1b = -3

Solving
-10 + 1b = -3

Solving for variable 'b'.

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

Add '10' to each side of the equation.
-10 + 10 + 1b = -3 + 10

Combine like terms: -10 + 10 = 0
0 + 1b = -3 + 10
1b = -3 + 10

Combine like terms: -3 + 10 = 7
1b = 7

Divide each side by '1'.
b = 7

Simplifying
b = 7

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