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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 = 612
9r2 = 612
Divide each side by '9'.
r2 = 68
Simplifying
r2 = 68
Take the square root of each side:
r = {-8.246211251, 8.246211251}
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