(5b-7)-3(8-2b)=-1b-15

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Solution for (5b-7)-3(8-2b)=-1b-15 equation:


Simplifying
(5b + -7) + -3(8 + -2b) = -1b + -15

Reorder the terms:
(-7 + 5b) + -3(8 + -2b) = -1b + -15

Remove parenthesis around (-7 + 5b)
-7 + 5b + -3(8 + -2b) = -1b + -15
-7 + 5b + (8 * -3 + -2b * -3) = -1b + -15
-7 + 5b + (-24 + 6b) = -1b + -15

Reorder the terms:
-7 + -24 + 5b + 6b = -1b + -15

Combine like terms: -7 + -24 = -31
-31 + 5b + 6b = -1b + -15

Combine like terms: 5b + 6b = 11b
-31 + 11b = -1b + -15

Reorder the terms:
-31 + 11b = -15 + -1b

Solving
-31 + 11b = -15 + -1b

Solving for variable 'b'.

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

Add 'b' to each side of the equation.
-31 + 11b + b = -15 + -1b + b

Combine like terms: 11b + b = 12b
-31 + 12b = -15 + -1b + b

Combine like terms: -1b + b = 0
-31 + 12b = -15 + 0
-31 + 12b = -15

Add '31' to each side of the equation.
-31 + 31 + 12b = -15 + 31

Combine like terms: -31 + 31 = 0
0 + 12b = -15 + 31
12b = -15 + 31

Combine like terms: -15 + 31 = 16
12b = 16

Divide each side by '12'.
b = 1.333333333

Simplifying
b = 1.333333333

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