C+(c-10)+(c-20)=180

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Solution for C+(c-10)+(c-20)=180 equation: 


Simplifying
C + (c + -10) + (c + -20) = 180

Reorder the terms:
C + (-10 + c) + (c + -20) = 180

Remove parenthesis around (-10 + c)
C + -10 + c + (c + -20) = 180

Reorder the terms:
C + -10 + c + (-20 + c) = 180

Remove parenthesis around (-20 + c)
C + -10 + c + -20 + c = 180

Reorder the terms:
-10 + -20 + C + c + c = 180

Combine like terms: -10 + -20 = -30
-30 + C + c + c = 180

Combine like terms: c + c = 2c
-30 + C + 2c = 180

Solving
-30 + C + 2c = 180

Solving for variable 'C'.

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

Add '30' to each side of the equation.
-30 + C + 30 + 2c = 180 + 30

Reorder the terms:
-30 + 30 + C + 2c = 180 + 30

Combine like terms: -30 + 30 = 0
0 + C + 2c = 180 + 30
C + 2c = 180 + 30

Combine like terms: 180 + 30 = 210
C + 2c = 210

Add '-2c' to each side of the equation.
C + 2c + -2c = 210 + -2c

Combine like terms: 2c + -2c = 0
C + 0 = 210 + -2c
C = 210 + -2c

Simplifying
C = 210 + -2c

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