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Simplifying
x2 + 10 + -3 = 90
Reorder the terms:
10 + -3 + x2 = 90
Combine like terms: 10 + -3 = 7
7 + x2 = 90
Solving
7 + x2 = 90
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-7' to each side of the equation.
7 + -7 + x2 = 90 + -7
Combine like terms: 7 + -7 = 0
0 + x2 = 90 + -7
x2 = 90 + -7
Combine like terms: 90 + -7 = 83
x2 = 83
Simplifying
x2 = 83
Take the square root of each side:
x = {-9.110433579, 9.110433579}
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