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Simplifying
15 + -20x2 = 0
Solving
15 + -20x2 = 0
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-15' to each side of the equation.
15 + -15 + -20x2 = 0 + -15
Combine like terms: 15 + -15 = 0
0 + -20x2 = 0 + -15
-20x2 = 0 + -15
Combine like terms: 0 + -15 = -15
-20x2 = -15
Divide each side by '-20'.
x2 = 0.75
Simplifying
x2 = 0.75
Take the square root of each side:
x = {-0.866025404, 0.866025404}
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