2.45-3.1r=21.05

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Solution for 2.45-3.1r=21.05 equation: 


Simplifying
2.45 + -3.1r = 21.05

Solving
2.45 + -3.1r = 21.05

Solving for variable 'r'.

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

Add '-2.45' to each side of the equation.
2.45 + -2.45 + -3.1r = 21.05 + -2.45

Combine like terms: 2.45 + -2.45 = 0.00
0.00 + -3.1r = 21.05 + -2.45
-3.1r = 21.05 + -2.45

Combine like terms: 21.05 + -2.45 = 18.6
-3.1r = 18.6

Divide each side by '-3.1'.
r = -6

Simplifying
r = -6

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