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Simplifying
20r2 + 15 = 5795
Reorder the terms:
15 + 20r2 = 5795
Solving
15 + 20r2 = 5795
Solving for variable 'r'.
Move all terms containing r to the left, all other terms to the right.
Add '-15' to each side of the equation.
15 + -15 + 20r2 = 5795 + -15
Combine like terms: 15 + -15 = 0
0 + 20r2 = 5795 + -15
20r2 = 5795 + -15
Combine like terms: 5795 + -15 = 5780
20r2 = 5780
Divide each side by '20'.
r2 = 289
Simplifying
r2 = 289
Take the square root of each side:
r = {-17, 17}
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