4r-5r=-2

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Solution for 4r-5r=-2 equation: 


Simplifying
4r + -5r = -2

Combine like terms: 4r + -5r = -1r
-1r = -2

Solving
-1r = -2

Solving for variable 'r'.

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

Divide each side by '-1'.
r = 2

Simplifying
r = 2

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