-5(7b+12)-7(-7b+11)=9+4b+b+7

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Solution for -5(7b+12)-7(-7b+11)=9+4b+b+7 equation:


Simplifying
-5(7b + 12) + -7(-7b + 11) = 9 + 4b + b + 7

Reorder the terms:
-5(12 + 7b) + -7(-7b + 11) = 9 + 4b + b + 7
(12 * -5 + 7b * -5) + -7(-7b + 11) = 9 + 4b + b + 7
(-60 + -35b) + -7(-7b + 11) = 9 + 4b + b + 7

Reorder the terms:
-60 + -35b + -7(11 + -7b) = 9 + 4b + b + 7
-60 + -35b + (11 * -7 + -7b * -7) = 9 + 4b + b + 7
-60 + -35b + (-77 + 49b) = 9 + 4b + b + 7

Reorder the terms:
-60 + -77 + -35b + 49b = 9 + 4b + b + 7

Combine like terms: -60 + -77 = -137
-137 + -35b + 49b = 9 + 4b + b + 7

Combine like terms: -35b + 49b = 14b
-137 + 14b = 9 + 4b + b + 7

Reorder the terms:
-137 + 14b = 9 + 7 + 4b + b

Combine like terms: 9 + 7 = 16
-137 + 14b = 16 + 4b + b

Combine like terms: 4b + b = 5b
-137 + 14b = 16 + 5b

Solving
-137 + 14b = 16 + 5b

Solving for variable 'b'.

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

Add '-5b' to each side of the equation.
-137 + 14b + -5b = 16 + 5b + -5b

Combine like terms: 14b + -5b = 9b
-137 + 9b = 16 + 5b + -5b

Combine like terms: 5b + -5b = 0
-137 + 9b = 16 + 0
-137 + 9b = 16

Add '137' to each side of the equation.
-137 + 137 + 9b = 16 + 137

Combine like terms: -137 + 137 = 0
0 + 9b = 16 + 137
9b = 16 + 137

Combine like terms: 16 + 137 = 153
9b = 153

Divide each side by '9'.
b = 17

Simplifying
b = 17

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