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Simplifying
-3x2 + 7 = -74
Reorder the terms:
7 + -3x2 = -74
Solving
7 + -3x2 = -74
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 + -3x2 = -74 + -7
Combine like terms: 7 + -7 = 0
0 + -3x2 = -74 + -7
-3x2 = -74 + -7
Combine like terms: -74 + -7 = -81
-3x2 = -81
Divide each side by '-3'.
x2 = 27
Simplifying
x2 = 27
Take the square root of each side:
x = {-5.196152423, 5.196152423}
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