21-7v=6(3-v)

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Solution for 21-7v=6(3-v) equation:


Simplifying
21 + -7v = 6(3 + -1v)
21 + -7v = (3 * 6 + -1v * 6)
21 + -7v = (18 + -6v)

Solving
21 + -7v = 18 + -6v

Solving for variable 'v'.

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

Add '6v' to each side of the equation.
21 + -7v + 6v = 18 + -6v + 6v

Combine like terms: -7v + 6v = -1v
21 + -1v = 18 + -6v + 6v

Combine like terms: -6v + 6v = 0
21 + -1v = 18 + 0
21 + -1v = 18

Add '-21' to each side of the equation.
21 + -21 + -1v = 18 + -21

Combine like terms: 21 + -21 = 0
0 + -1v = 18 + -21
-1v = 18 + -21

Combine like terms: 18 + -21 = -3
-1v = -3

Divide each side by '-1'.
v = 3

Simplifying
v = 3

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