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Simplifying
9x2 + -11 = 718
Reorder the terms:
-11 + 9x2 = 718
Solving
-11 + 9x2 = 718
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 + 9x2 = 718 + 11
Combine like terms: -11 + 11 = 0
0 + 9x2 = 718 + 11
9x2 = 718 + 11
Combine like terms: 718 + 11 = 729
9x2 = 729
Divide each side by '9'.
x2 = 81
Simplifying
x2 = 81
Take the square root of each side:
x = {-9, 9}
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