(13b-1)-3(4b+3)=-3

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Solution for (13b-1)-3(4b+3)=-3 equation:


Simplifying
(13b + -1) + -3(4b + 3) = -3

Reorder the terms:
(-1 + 13b) + -3(4b + 3) = -3

Remove parenthesis around (-1 + 13b)
-1 + 13b + -3(4b + 3) = -3

Reorder the terms:
-1 + 13b + -3(3 + 4b) = -3
-1 + 13b + (3 * -3 + 4b * -3) = -3
-1 + 13b + (-9 + -12b) = -3

Reorder the terms:
-1 + -9 + 13b + -12b = -3

Combine like terms: -1 + -9 = -10
-10 + 13b + -12b = -3

Combine like terms: 13b + -12b = 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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