(13B-1)-3(4B+4)=-7

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Solution for (13B-1)-3(4B+4)=-7 equation:


Simplifying
(13B + -1) + -3(4B + 4) = -7

Reorder the terms:
(-1 + 13B) + -3(4B + 4) = -7

Remove parenthesis around (-1 + 13B)
-1 + 13B + -3(4B + 4) = -7

Reorder the terms:
-1 + 13B + -3(4 + 4B) = -7
-1 + 13B + (4 * -3 + 4B * -3) = -7
-1 + 13B + (-12 + -12B) = -7

Reorder the terms:
-1 + -12 + 13B + -12B = -7

Combine like terms: -1 + -12 = -13
-13 + 13B + -12B = -7

Combine like terms: 13B + -12B = 1B
-13 + 1B = -7

Solving
-13 + 1B = -7

Solving for variable 'B'.

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

Add '13' to each side of the equation.
-13 + 13 + 1B = -7 + 13

Combine like terms: -13 + 13 = 0
0 + 1B = -7 + 13
1B = -7 + 13

Combine like terms: -7 + 13 = 6
1B = 6

Divide each side by '1'.
B = 6

Simplifying
B = 6

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