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Simplifying
3r2 + -2 = 52.18
Reorder the terms:
-2 + 3r2 = 52.18
Solving
-2 + 3r2 = 52.18
Solving for variable 'r'.
Move all terms containing r to the left, all other terms to the right.
Add '2' to each side of the equation.
-2 + 2 + 3r2 = 52.18 + 2
Combine like terms: -2 + 2 = 0
0 + 3r2 = 52.18 + 2
3r2 = 52.18 + 2
Combine like terms: 52.18 + 2 = 54.18
3r2 = 54.18
Divide each side by '3'.
r2 = 18.06
Simplifying
r2 = 18.06
Take the square root of each side:
r = {-4.249705872, 4.249705872}
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