3r-7.2=1.8

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Solution for 3r-7.2=1.8 equation: 


Simplifying
3r + -7.2 = 1.8

Reorder the terms:
-7.2 + 3r = 1.8

Solving
-7.2 + 3r = 1.8

Solving for variable 'r'.

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

Add '7.2' to each side of the equation.
-7.2 + 7.2 + 3r = 1.8 + 7.2

Combine like terms: -7.2 + 7.2 = 0.0
0.0 + 3r = 1.8 + 7.2
3r = 1.8 + 7.2

Combine like terms: 1.8 + 7.2 = 9
3r = 9

Divide each side by '3'.
r = 3

Simplifying
r = 3

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