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Simplifying
x2 + 20 = 39
Reorder the terms:
20 + x2 = 39
Solving
20 + x2 = 39
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-20' to each side of the equation.
20 + -20 + x2 = 39 + -20
Combine like terms: 20 + -20 = 0
0 + x2 = 39 + -20
x2 = 39 + -20
Combine like terms: 39 + -20 = 19
x2 = 19
Simplifying
x2 = 19
Take the square root of each side:
x = {-4.358898944, 4.358898944}
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