x^2-22r+121=0

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Solution for x^2-22r+121=0 equation:


Simplifying
x2 + -22r + 121 = 0

Reorder the terms:
121 + -22r + x2 = 0

Solving
121 + -22r + x2 = 0

Solving for variable 'r'.

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

Add '-121' to each side of the equation.
121 + -22r + -121 + x2 = 0 + -121

Reorder the terms:
121 + -121 + -22r + x2 = 0 + -121

Combine like terms: 121 + -121 = 0
0 + -22r + x2 = 0 + -121
-22r + x2 = 0 + -121

Combine like terms: 0 + -121 = -121
-22r + x2 = -121

Add '-1x2' to each side of the equation.
-22r + x2 + -1x2 = -121 + -1x2

Combine like terms: x2 + -1x2 = 0
-22r + 0 = -121 + -1x2
-22r = -121 + -1x2

Divide each side by '-22'.
r = 5.5 + 0.04545454545x2

Simplifying
r = 5.5 + 0.04545454545x2

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