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Simplifying
x2 + 3 = 42
Reorder the terms:
3 + x2 = 42
Solving
3 + x2 = 42
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-3' to each side of the equation.
3 + -3 + x2 = 42 + -3
Combine like terms: 3 + -3 = 0
0 + x2 = 42 + -3
x2 = 42 + -3
Combine like terms: 42 + -3 = 39
x2 = 39
Simplifying
x2 = 39
Take the square root of each side:
x = {-6.244997998, 6.244997998}
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