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Simplifying
5x2 + 80 = 180
Reorder the terms:
80 + 5x2 = 180
Solving
80 + 5x2 = 180
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-80' to each side of the equation.
80 + -80 + 5x2 = 180 + -80
Combine like terms: 80 + -80 = 0
0 + 5x2 = 180 + -80
5x2 = 180 + -80
Combine like terms: 180 + -80 = 100
5x2 = 100
Divide each side by '5'.
x2 = 20
Simplifying
x2 = 20
Take the square root of each side:
x = {-4.472135955, 4.472135955}
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