(13b-7)-4(3b+2)=-5

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Solution for (13b-7)-4(3b+2)=-5 equation:


Simplifying
(13b + -7) + -4(3b + 2) = -5

Reorder the terms:
(-7 + 13b) + -4(3b + 2) = -5

Remove parenthesis around (-7 + 13b)
-7 + 13b + -4(3b + 2) = -5

Reorder the terms:
-7 + 13b + -4(2 + 3b) = -5
-7 + 13b + (2 * -4 + 3b * -4) = -5
-7 + 13b + (-8 + -12b) = -5

Reorder the terms:
-7 + -8 + 13b + -12b = -5

Combine like terms: -7 + -8 = -15
-15 + 13b + -12b = -5

Combine like terms: 13b + -12b = 1b
-15 + 1b = -5

Solving
-15 + 1b = -5

Solving for variable 'b'.

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

Add '15' to each side of the equation.
-15 + 15 + 1b = -5 + 15

Combine like terms: -15 + 15 = 0
0 + 1b = -5 + 15
1b = -5 + 15

Combine like terms: -5 + 15 = 10
1b = 10

Divide each side by '1'.
b = 10

Simplifying
b = 10

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