4r-5r+9=5r-9

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Solution for 4r-5r+9=5r-9 equation:


Simplifying
4r + -5r + 9 = 5r + -9

Reorder the terms:
9 + 4r + -5r = 5r + -9

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

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

Solving
9 + -1r = -9 + 5r

Solving for variable 'r'.

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

Add '-5r' to each side of the equation.
9 + -1r + -5r = -9 + 5r + -5r

Combine like terms: -1r + -5r = -6r
9 + -6r = -9 + 5r + -5r

Combine like terms: 5r + -5r = 0
9 + -6r = -9 + 0
9 + -6r = -9

Add '-9' to each side of the equation.
9 + -9 + -6r = -9 + -9

Combine like terms: 9 + -9 = 0
0 + -6r = -9 + -9
-6r = -9 + -9

Combine like terms: -9 + -9 = -18
-6r = -18

Divide each side by '-6'.
r = 3

Simplifying
r = 3

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