9=-r-5+11

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Solution for 9=-r-5+11 equation:


Simplifying
9 = -1r + -5 + 11

Reorder the terms:
9 = -5 + 11 + -1r

Combine like terms: -5 + 11 = 6
9 = 6 + -1r

Solving
9 = 6 + -1r

Solving for variable 'r'.

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

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

Combine like terms: -1r + r = 0
9 + r = 6 + 0
9 + r = 6

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

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

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

Simplifying
r = -3

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