9r-5r+7=8r+7-r

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Solution for 9r-5r+7=8r+7-r equation:


Simplifying
9r + -5r + 7 = 8r + 7 + -1r

Reorder the terms:
7 + 9r + -5r = 8r + 7 + -1r

Combine like terms: 9r + -5r = 4r
7 + 4r = 8r + 7 + -1r

Reorder the terms:
7 + 4r = 7 + 8r + -1r

Combine like terms: 8r + -1r = 7r
7 + 4r = 7 + 7r

Add '-7' to each side of the equation.
7 + -7 + 4r = 7 + -7 + 7r

Combine like terms: 7 + -7 = 0
0 + 4r = 7 + -7 + 7r
4r = 7 + -7 + 7r

Combine like terms: 7 + -7 = 0
4r = 0 + 7r
4r = 7r

Solving
4r = 7r

Solving for variable 'r'.

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

Add '-7r' to each side of the equation.
4r + -7r = 7r + -7r

Combine like terms: 4r + -7r = -3r
-3r = 7r + -7r

Combine like terms: 7r + -7r = 0
-3r = 0

Divide each side by '-3'.
r = 0

Simplifying
r = 0

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