5x^2-72r-45=0

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Solution for 5x^2-72r-45=0 equation:


Simplifying
5x2 + -72r + -45 = 0

Reorder the terms:
-45 + -72r + 5x2 = 0

Solving
-45 + -72r + 5x2 = 0

Solving for variable 'r'.

Move all terms containing r to the left, all other terms to the right.

Add '45' to each side of the equation.
-45 + -72r + 45 + 5x2 = 0 + 45

Reorder the terms:
-45 + 45 + -72r + 5x2 = 0 + 45

Combine like terms: -45 + 45 = 0
0 + -72r + 5x2 = 0 + 45
-72r + 5x2 = 0 + 45

Combine like terms: 0 + 45 = 45
-72r + 5x2 = 45

Add '-5x2' to each side of the equation.
-72r + 5x2 + -5x2 = 45 + -5x2

Combine like terms: 5x2 + -5x2 = 0
-72r + 0 = 45 + -5x2
-72r = 45 + -5x2

Divide each side by '-72'.
r = -0.625 + 0.06944444444x2

Simplifying
r = -0.625 + 0.06944444444x2

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