9=-(r-5)-11

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Solution for 9=-(r-5)-11 equation:


Simplifying
9 = -1(r + -5) + -11

Reorder the terms:
9 = -1(-5 + r) + -11
9 = (-5 * -1 + r * -1) + -11
9 = (5 + -1r) + -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 = -15
r = -15

Simplifying
r = -15

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