c+c+(c+18)+(c+36)=90

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Solution for c+c+(c+18)+(c+36)=90 equation:


Simplifying
c + c + (c + 18) + (c + 36) = 90

Reorder the terms:
c + c + (18 + c) + (c + 36) = 90

Remove parenthesis around (18 + c)
c + c + 18 + c + (c + 36) = 90

Reorder the terms:
c + c + 18 + c + (36 + c) = 90

Remove parenthesis around (36 + c)
c + c + 18 + c + 36 + c = 90

Reorder the terms:
18 + 36 + c + c + c + c = 90

Combine like terms: 18 + 36 = 54
54 + c + c + c + c = 90

Combine like terms: c + c = 2c
54 + 2c + c + c = 90

Combine like terms: 2c + c = 3c
54 + 3c + c = 90

Combine like terms: 3c + c = 4c
54 + 4c = 90

Solving
54 + 4c = 90

Solving for variable 'c'.

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

Add '-54' to each side of the equation.
54 + -54 + 4c = 90 + -54

Combine like terms: 54 + -54 = 0
0 + 4c = 90 + -54
4c = 90 + -54

Combine like terms: 90 + -54 = 36
4c = 36

Divide each side by '4'.
c = 9

Simplifying
c = 9

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