v(x)=7(3-x)x

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Solution for v(x)=7(3-x)x equation: 


Simplifying
v(x) = 7(3 + -1x) * x

Multiply v * x
vx = 7(3 + -1x) * x

Reorder the terms for easier multiplication:
vx = 7x(3 + -1x)
vx = (3 * 7x + -1x * 7x)
vx = (21x + -7x2)

Solving
vx = 21x + -7x2

Solving for variable 'v'.

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

Divide each side by 'x'.
v = 21 + -7x

Simplifying
v = 21 + -7x

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