12(5-3b)+7(5b+10)=118

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Solution for 12(5-3b)+7(5b+10)=118 equation:


Simplifying
12(5 + -3b) + 7(5b + 10) = 118
(5 * 12 + -3b * 12) + 7(5b + 10) = 118
(60 + -36b) + 7(5b + 10) = 118

Reorder the terms:
60 + -36b + 7(10 + 5b) = 118
60 + -36b + (10 * 7 + 5b * 7) = 118
60 + -36b + (70 + 35b) = 118

Reorder the terms:
60 + 70 + -36b + 35b = 118

Combine like terms: 60 + 70 = 130
130 + -36b + 35b = 118

Combine like terms: -36b + 35b = -1b
130 + -1b = 118

Solving
130 + -1b = 118

Solving for variable 'b'.

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

Add '-130' to each side of the equation.
130 + -130 + -1b = 118 + -130

Combine like terms: 130 + -130 = 0
0 + -1b = 118 + -130
-1b = 118 + -130

Combine like terms: 118 + -130 = -12
-1b = -12

Divide each side by '-1'.
b = 12

Simplifying
b = 12

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