-r-5=2r-7-r

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


Simplifying
-1r + -5 = 2r + -7 + -1r

Reorder the terms:
-5 + -1r = 2r + -7 + -1r

Reorder the terms:
-5 + -1r = -7 + 2r + -1r

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

Solving
-5 + -1r = -7 + 1r

Solving for variable 'r'.

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

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

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

Combine like terms: 1r + -1r = 0
-5 + -2r = -7 + 0
-5 + -2r = -7

Add '5' to each side of the equation.
-5 + 5 + -2r = -7 + 5

Combine like terms: -5 + 5 = 0
0 + -2r = -7 + 5
-2r = -7 + 5

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

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

Simplifying
r = 1

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