-7(v-7)=7v+21

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Solution for -7(v-7)=7v+21 equation:


Simplifying
-7(v + -7) = 7v + 21

Reorder the terms:
-7(-7 + v) = 7v + 21
(-7 * -7 + v * -7) = 7v + 21
(49 + -7v) = 7v + 21

Reorder the terms:
49 + -7v = 21 + 7v

Solving
49 + -7v = 21 + 7v

Solving for variable 'v'.

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

Add '-7v' to each side of the equation.
49 + -7v + -7v = 21 + 7v + -7v

Combine like terms: -7v + -7v = -14v
49 + -14v = 21 + 7v + -7v

Combine like terms: 7v + -7v = 0
49 + -14v = 21 + 0
49 + -14v = 21

Add '-49' to each side of the equation.
49 + -49 + -14v = 21 + -49

Combine like terms: 49 + -49 = 0
0 + -14v = 21 + -49
-14v = 21 + -49

Combine like terms: 21 + -49 = -28
-14v = -28

Divide each side by '-14'.
v = 2

Simplifying
v = 2

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