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Simplifying
-4x2 + 7 = -93
Reorder the terms:
7 + -4x2 = -93
Solving
7 + -4x2 = -93
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 + -4x2 = -93 + -7
Combine like terms: 7 + -7 = 0
0 + -4x2 = -93 + -7
-4x2 = -93 + -7
Combine like terms: -93 + -7 = -100
-4x2 = -100
Divide each side by '-4'.
x2 = 25
Simplifying
x2 = 25
Take the square root of each side:
x = {-5, 5}
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