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Simplifying
9r2 + 5 = 607
Reorder the terms:
5 + 9r2 = 607
Solving
5 + 9r2 = 607
Solving for variable 'r'.
Move all terms containing r to the left, all other terms to the right.
Add '-5' to each side of the equation.
5 + -5 + 9r2 = 607 + -5
Combine like terms: 5 + -5 = 0
0 + 9r2 = 607 + -5
9r2 = 607 + -5
Combine like terms: 607 + -5 = 602
9r2 = 602
Divide each side by '9'.
r2 = 66.88888889
Simplifying
r2 = 66.88888889
Take the square root of each side:
r = {-8.178562764, 8.178562764}
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