7c+12v-20=9c+12v-15

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Solution for 7c+12v-20=9c+12v-15 equation:


Simplifying
7c + 12v + -20 = 9c + 12v + -15

Reorder the terms:
-20 + 7c + 12v = 9c + 12v + -15

Reorder the terms:
-20 + 7c + 12v = -15 + 9c + 12v

Add '-12v' to each side of the equation.
-20 + 7c + 12v + -12v = -15 + 9c + 12v + -12v

Combine like terms: 12v + -12v = 0
-20 + 7c + 0 = -15 + 9c + 12v + -12v
-20 + 7c = -15 + 9c + 12v + -12v

Combine like terms: 12v + -12v = 0
-20 + 7c = -15 + 9c + 0
-20 + 7c = -15 + 9c

Solving
-20 + 7c = -15 + 9c

Solving for variable 'c'.

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

Add '-9c' to each side of the equation.
-20 + 7c + -9c = -15 + 9c + -9c

Combine like terms: 7c + -9c = -2c
-20 + -2c = -15 + 9c + -9c

Combine like terms: 9c + -9c = 0
-20 + -2c = -15 + 0
-20 + -2c = -15

Add '20' to each side of the equation.
-20 + 20 + -2c = -15 + 20

Combine like terms: -20 + 20 = 0
0 + -2c = -15 + 20
-2c = -15 + 20

Combine like terms: -15 + 20 = 5
-2c = 5

Divide each side by '-2'.
c = -2.5

Simplifying
c = -2.5

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