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Simplifying
3r2 + -2 = 34.75
Reorder the terms:
-2 + 3r2 = 34.75
Solving
-2 + 3r2 = 34.75
Solving for variable 'r'.
Move all terms containing r to the left, all other terms to the right.
Add '2' to each side of the equation.
-2 + 2 + 3r2 = 34.75 + 2
Combine like terms: -2 + 2 = 0
0 + 3r2 = 34.75 + 2
3r2 = 34.75 + 2
Combine like terms: 34.75 + 2 = 36.75
3r2 = 36.75
Divide each side by '3'.
r2 = 12.25
Simplifying
r2 = 12.25
Take the square root of each side:
r = {-3.5, 3.5}
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