10v-3v+4-2v=21

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Solution for 10v-3v+4-2v=21 equation:


Simplifying
10v + -3v + 4 + -2v = 21

Reorder the terms:
4 + 10v + -3v + -2v = 21

Combine like terms: 10v + -3v = 7v
4 + 7v + -2v = 21

Combine like terms: 7v + -2v = 5v
4 + 5v = 21

Solving
4 + 5v = 21

Solving for variable 'v'.

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

Add '-4' to each side of the equation.
4 + -4 + 5v = 21 + -4

Combine like terms: 4 + -4 = 0
0 + 5v = 21 + -4
5v = 21 + -4

Combine like terms: 21 + -4 = 17
5v = 17

Divide each side by '5'.
v = 3.4

Simplifying
v = 3.4

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