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Simplifying
x2 + 8 + -1 = 19
Reorder the terms:
8 + -1 + x2 = 19
Combine like terms: 8 + -1 = 7
7 + x2 = 19
Solving
7 + x2 = 19
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 = 19 + -7
Combine like terms: 7 + -7 = 0
0 + x2 = 19 + -7
x2 = 19 + -7
Combine like terms: 19 + -7 = 12
x2 = 12
Simplifying
x2 = 12
Take the square root of each side:
x = {-3.464101615, 3.464101615}
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