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Simplifying
9 + -9x2 = -160
Solving
9 + -9x2 = -160
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-9' to each side of the equation.
9 + -9 + -9x2 = -160 + -9
Combine like terms: 9 + -9 = 0
0 + -9x2 = -160 + -9
-9x2 = -160 + -9
Combine like terms: -160 + -9 = -169
-9x2 = -169
Divide each side by '-9'.
x2 = 18.77777778
Simplifying
x2 = 18.77777778
Take the square root of each side:
x = {-4.333333334, 4.333333334}
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