-31=-5v+3(v-7)

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Solution for -31=-5v+3(v-7) equation:


Simplifying
-31 = -5v + 3(v + -7)

Reorder the terms:
-31 = -5v + 3(-7 + v)
-31 = -5v + (-7 * 3 + v * 3)
-31 = -5v + (-21 + 3v)

Reorder the terms:
-31 = -21 + -5v + 3v

Combine like terms: -5v + 3v = -2v
-31 = -21 + -2v

Solving
-31 = -21 + -2v

Solving for variable 'v'.

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

Add '2v' to each side of the equation.
-31 + 2v = -21 + -2v + 2v

Combine like terms: -2v + 2v = 0
-31 + 2v = -21 + 0
-31 + 2v = -21

Add '31' to each side of the equation.
-31 + 31 + 2v = -21 + 31

Combine like terms: -31 + 31 = 0
0 + 2v = -21 + 31
2v = -21 + 31

Combine like terms: -21 + 31 = 10
2v = 10

Divide each side by '2'.
v = 5

Simplifying
v = 5

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