102=12v+15-4v-7

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Solution for 102=12v+15-4v-7 equation:


Simplifying
102 = 12v + 15 + -4v + -7

Reorder the terms:
102 = 15 + -7 + 12v + -4v

Combine like terms: 15 + -7 = 8
102 = 8 + 12v + -4v

Combine like terms: 12v + -4v = 8v
102 = 8 + 8v

Solving
102 = 8 + 8v

Solving for variable 'v'.

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

Add '-8v' to each side of the equation.
102 + -8v = 8 + 8v + -8v

Combine like terms: 8v + -8v = 0
102 + -8v = 8 + 0
102 + -8v = 8

Add '-102' to each side of the equation.
102 + -102 + -8v = 8 + -102

Combine like terms: 102 + -102 = 0
0 + -8v = 8 + -102
-8v = 8 + -102

Combine like terms: 8 + -102 = -94
-8v = -94

Divide each side by '-8'.
v = 11.75

Simplifying
v = 11.75

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