84=3.5c-2c

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Solution for 84=3.5c-2c equation:


Simplifying
84 = 3.5c + -2c

Combine like terms: 3.5c + -2c = 1.5c
84 = 1.5c

Solving
84 = 1.5c

Solving for variable 'c'.

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

Add '-1.5c' to each side of the equation.
84 + -1.5c = 1.5c + -1.5c

Combine like terms: 1.5c + -1.5c = 0.0
84 + -1.5c = 0.0

Add '-84' to each side of the equation.
84 + -84 + -1.5c = 0.0 + -84

Combine like terms: 84 + -84 = 0
0 + -1.5c = 0.0 + -84
-1.5c = 0.0 + -84

Combine like terms: 0.0 + -84 = -84
-1.5c = -84

Divide each side by '-1.5'.
c = 56

Simplifying
c = 56

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