30+5c=20+7c

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Solution for 30+5c=20+7c equation:


Simplifying
30 + 5c = 20 + 7c

Solving
30 + 5c = 20 + 7c

Solving for variable 'c'.

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

Add '-7c' to each side of the equation.
30 + 5c + -7c = 20 + 7c + -7c

Combine like terms: 5c + -7c = -2c
30 + -2c = 20 + 7c + -7c

Combine like terms: 7c + -7c = 0
30 + -2c = 20 + 0
30 + -2c = 20

Add '-30' to each side of the equation.
30 + -30 + -2c = 20 + -30

Combine like terms: 30 + -30 = 0
0 + -2c = 20 + -30
-2c = 20 + -30

Combine like terms: 20 + -30 = -10
-2c = -10

Divide each side by '-2'.
c = 5

Simplifying
c = 5

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