3v+7(v-4)=12

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Solution for 3v+7(v-4)=12 equation:


Simplifying
3v + 7(v + -4) = 12

Reorder the terms:
3v + 7(-4 + v) = 12
3v + (-4 * 7 + v * 7) = 12
3v + (-28 + 7v) = 12

Reorder the terms:
-28 + 3v + 7v = 12

Combine like terms: 3v + 7v = 10v
-28 + 10v = 12

Solving
-28 + 10v = 12

Solving for variable 'v'.

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

Add '28' to each side of the equation.
-28 + 28 + 10v = 12 + 28

Combine like terms: -28 + 28 = 0
0 + 10v = 12 + 28
10v = 12 + 28

Combine like terms: 12 + 28 = 40
10v = 40

Divide each side by '10'.
v = 4

Simplifying
v = 4

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