90=30+1.8c

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Solution for 90=30+1.8c equation:


Simplifying
90 = 30 + 1.8c

Solving
90 = 30 + 1.8c

Solving for variable 'c'.

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

Add '-1.8c' to each side of the equation.
90 + -1.8c = 30 + 1.8c + -1.8c

Combine like terms: 1.8c + -1.8c = 0.0
90 + -1.8c = 30 + 0.0
90 + -1.8c = 30

Add '-90' to each side of the equation.
90 + -90 + -1.8c = 30 + -90

Combine like terms: 90 + -90 = 0
0 + -1.8c = 30 + -90
-1.8c = 30 + -90

Combine like terms: 30 + -90 = -60
-1.8c = -60

Divide each side by '-1.8'.
c = 33.33333333

Simplifying
c = 33.33333333

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