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Simplifying
-8X2 + 31 = 7
Reorder the terms:
31 + -8X2 = 7
Solving
31 + -8X2 = 7
Solving for variable 'X'.
Move all terms containing X to the left, all other terms to the right.
Add '-31' to each side of the equation.
31 + -31 + -8X2 = 7 + -31
Combine like terms: 31 + -31 = 0
0 + -8X2 = 7 + -31
-8X2 = 7 + -31
Combine like terms: 7 + -31 = -24
-8X2 = -24
Divide each side by '-8'.
X2 = 3
Simplifying
X2 = 3
Take the square root of each side:
X = {-1.732050808, 1.732050808}
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