9-r=2r+6

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Solution for 9-r=2r+6 equation:


Simplifying
9 + -1r = 2r + 6

Reorder the terms:
9 + -1r = 6 + 2r

Solving
9 + -1r = 6 + 2r

Solving for variable 'r'.

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

Add '-2r' to each side of the equation.
9 + -1r + -2r = 6 + 2r + -2r

Combine like terms: -1r + -2r = -3r
9 + -3r = 6 + 2r + -2r

Combine like terms: 2r + -2r = 0
9 + -3r = 6 + 0
9 + -3r = 6

Add '-9' to each side of the equation.
9 + -9 + -3r = 6 + -9

Combine like terms: 9 + -9 = 0
0 + -3r = 6 + -9
-3r = 6 + -9

Combine like terms: 6 + -9 = -3
-3r = -3

Divide each side by '-3'.
r = 1

Simplifying
r = 1

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