3(5v+7)=126

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Solution for 3(5v+7)=126 equation: 


Simplifying
3(5v + 7) = 126

Reorder the terms:
3(7 + 5v) = 126
(7 * 3 + 5v * 3) = 126
(21 + 15v) = 126

Solving
21 + 15v = 126

Solving for variable 'v'.

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

Add '-21' to each side of the equation.
21 + -21 + 15v = 126 + -21

Combine like terms: 21 + -21 = 0
0 + 15v = 126 + -21
15v = 126 + -21

Combine like terms: 126 + -21 = 105
15v = 105

Divide each side by '15'.
v = 7

Simplifying
v = 7

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