3b+5(-1+7b)=109

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Solution for 3b+5(-1+7b)=109 equation:


Simplifying
3b + 5(-1 + 7b) = 109
3b + (-1 * 5 + 7b * 5) = 109
3b + (-5 + 35b) = 109

Reorder the terms:
-5 + 3b + 35b = 109

Combine like terms: 3b + 35b = 38b
-5 + 38b = 109

Solving
-5 + 38b = 109

Solving for variable 'b'.

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

Add '5' to each side of the equation.
-5 + 5 + 38b = 109 + 5

Combine like terms: -5 + 5 = 0
0 + 38b = 109 + 5
38b = 109 + 5

Combine like terms: 109 + 5 = 114
38b = 114

Divide each side by '38'.
b = 3

Simplifying
b = 3

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