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

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


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

Reorder the terms:
-3b + 5(-7 + 3b) = b + -13
-3b + (-7 * 5 + 3b * 5) = b + -13
-3b + (-35 + 15b) = b + -13

Reorder the terms:
-35 + -3b + 15b = b + -13

Combine like terms: -3b + 15b = 12b
-35 + 12b = b + -13

Reorder the terms:
-35 + 12b = -13 + b

Solving
-35 + 12b = -13 + b

Solving for variable 'b'.

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

Add '-1b' to each side of the equation.
-35 + 12b + -1b = -13 + b + -1b

Combine like terms: 12b + -1b = 11b
-35 + 11b = -13 + b + -1b

Combine like terms: b + -1b = 0
-35 + 11b = -13 + 0
-35 + 11b = -13

Add '35' to each side of the equation.
-35 + 35 + 11b = -13 + 35

Combine like terms: -35 + 35 = 0
0 + 11b = -13 + 35
11b = -13 + 35

Combine like terms: -13 + 35 = 22
11b = 22

Divide each side by '11'.
b = 2

Simplifying
b = 2

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