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Simplifying
49r2 = 25
Solving
49r2 = 25
Solving for variable 'r'.
Move all terms containing r to the left, all other terms to the right.
Divide each side by '49'.
r2 = 0.5102040816
Simplifying
r2 = 0.5102040816
Take the square root of each side:
r = {-0.714285714, 0.714285714}
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