5r+9=8r

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Solution for 5r+9=8r equation:


Simplifying
5r + 9 = 8r

Reorder the terms:
9 + 5r = 8r

Solving
9 + 5r = 8r

Solving for variable 'r'.

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

Add '-8r' to each side of the equation.
9 + 5r + -8r = 8r + -8r

Combine like terms: 5r + -8r = -3r
9 + -3r = 8r + -8r

Combine like terms: 8r + -8r = 0
9 + -3r = 0

Add '-9' to each side of the equation.
9 + -9 + -3r = 0 + -9

Combine like terms: 9 + -9 = 0
0 + -3r = 0 + -9
-3r = 0 + -9

Combine like terms: 0 + -9 = -9
-3r = -9

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

Simplifying
r = 3

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