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Simplifying
15r2 + -50 = 0
Reorder the terms:
-50 + 15r2 = 0
Solving
-50 + 15r2 = 0
Solving for variable 'r'.
Move all terms containing r to the left, all other terms to the right.
Add '50' to each side of the equation.
-50 + 50 + 15r2 = 0 + 50
Combine like terms: -50 + 50 = 0
0 + 15r2 = 0 + 50
15r2 = 0 + 50
Combine like terms: 0 + 50 = 50
15r2 = 50
Divide each side by '15'.
r2 = 3.333333333
Simplifying
r2 = 3.333333333
Take the square root of each side:
r = {-1.825741858, 1.825741858}
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