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Simplifying
4x2 + -11 = -7
Reorder the terms:
-11 + 4x2 = -7
Solving
-11 + 4x2 = -7
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '11' to each side of the equation.
-11 + 11 + 4x2 = -7 + 11
Combine like terms: -11 + 11 = 0
0 + 4x2 = -7 + 11
4x2 = -7 + 11
Combine like terms: -7 + 11 = 4
4x2 = 4
Divide each side by '4'.
x2 = 1
Simplifying
x2 = 1
Take the square root of each side:
x = {-1, 1}
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