-3.5-1.25r=13.2

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Solution for -3.5-1.25r=13.2 equation: 


Simplifying
-3.5 + -1.25r = 13.2

Solving
-3.5 + -1.25r = 13.2

Solving for variable 'r'.

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

Add '3.5' to each side of the equation.
-3.5 + 3.5 + -1.25r = 13.2 + 3.5

Combine like terms: -3.5 + 3.5 = 0.0
0.0 + -1.25r = 13.2 + 3.5
-1.25r = 13.2 + 3.5

Combine like terms: 13.2 + 3.5 = 16.7
-1.25r = 16.7

Divide each side by '-1.25'.
r = -13.36

Simplifying
r = -13.36

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