r-2r+5=7

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Solution for r-2r+5=7 equation: 


Simplifying
r + -2r + 5 = 7

Reorder the terms:
5 + r + -2r = 7

Combine like terms: r + -2r = -1r
5 + -1r = 7

Solving
5 + -1r = 7

Solving for variable 'r'.

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

Add '-5' to each side of the equation.
5 + -5 + -1r = 7 + -5

Combine like terms: 5 + -5 = 0
0 + -1r = 7 + -5
-1r = 7 + -5

Combine like terms: 7 + -5 = 2
-1r = 2

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

Simplifying
r = -2

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