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Simplifying
64r2 + 9 = 10
Reorder the terms:
9 + 64r2 = 10
Solving
9 + 64r2 = 10
Solving for variable 'r'.
Move all terms containing r to the left, all other terms to the right.
Add '-9' to each side of the equation.
9 + -9 + 64r2 = 10 + -9
Combine like terms: 9 + -9 = 0
0 + 64r2 = 10 + -9
64r2 = 10 + -9
Combine like terms: 10 + -9 = 1
64r2 = 1
Divide each side by '64'.
r2 = 0.015625
Simplifying
r2 = 0.015625
Take the square root of each side:
r = {-0.125, 0.125}
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