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Simplifying
50r2 + -8 = 0
Reorder the terms:
-8 + 50r2 = 0
Solving
-8 + 50r2 = 0
Solving for variable 'r'.
Move all terms containing r to the left, all other terms to the right.
Add '8' to each side of the equation.
-8 + 8 + 50r2 = 0 + 8
Combine like terms: -8 + 8 = 0
0 + 50r2 = 0 + 8
50r2 = 0 + 8
Combine like terms: 0 + 8 = 8
50r2 = 8
Divide each side by '50'.
r2 = 0.16
Simplifying
r2 = 0.16
Take the square root of each side:
r = {-0.4, 0.4}
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