5+2r=9

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Solution for 5+2r=9 equation: 


Simplifying
5 + 2r = 9

Solving
5 + 2r = 9

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 + 2r = 9 + -5

Combine like terms: 5 + -5 = 0
0 + 2r = 9 + -5
2r = 9 + -5

Combine like terms: 9 + -5 = 4
2r = 4

Divide each side by '2'.
r = 2

Simplifying
r = 2

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