2r+9=5r-6

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Solution for 2r+9=5r-6 equation:


Simplifying
2r + 9 = 5r + -6

Reorder the terms:
9 + 2r = 5r + -6

Reorder the terms:
9 + 2r = -6 + 5r

Solving
9 + 2r = -6 + 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 + 2r + -5r = -6 + 5r + -5r

Combine like terms: 2r + -5r = -3r
9 + -3r = -6 + 5r + -5r

Combine like terms: 5r + -5r = 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 = -15
-3r = -15

Divide each side by '-3'.
r = 5

Simplifying
r = 5

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