40+7.5r=12.5r

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Solution for 40+7.5r=12.5r equation: 


Simplifying
40 + 7.5r = 12.5r

Solving
40 + 7.5r = 12.5r

Solving for variable 'r'.

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

Add '-12.5r' to each side of the equation.
40 + 7.5r + -12.5r = 12.5r + -12.5r

Combine like terms: 7.5r + -12.5r = -5r
40 + -5r = 12.5r + -12.5r

Combine like terms: 12.5r + -12.5r = 0.0
40 + -5r = 0.0

Add '-40' to each side of the equation.
40 + -40 + -5r = 0.0 + -40

Combine like terms: 40 + -40 = 0
0 + -5r = 0.0 + -40
-5r = 0.0 + -40

Combine like terms: 0.0 + -40 = -40
-5r = -40

Divide each side by '-5'.
r = 8

Simplifying
r = 8

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