9=-(r-50)+11

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Solution for 9=-(r-50)+11 equation:


Simplifying
9 = -1(r + -50) + 11

Reorder the terms:
9 = -1(-50 + r) + 11
9 = (-50 * -1 + r * -1) + 11
9 = (50 + -1r) + 11

Reorder the terms:
9 = 50 + 11 + -1r

Combine like terms: 50 + 11 = 61
9 = 61 + -1r

Solving
9 = 61 + -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 = 61 + -1r + r

Combine like terms: -1r + r = 0
9 + r = 61 + 0
9 + r = 61

Add '-9' to each side of the equation.
9 + -9 + r = 61 + -9

Combine like terms: 9 + -9 = 0
0 + r = 61 + -9
r = 61 + -9

Combine like terms: 61 + -9 = 52
r = 52

Simplifying
r = 52

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