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Simplifying
9x2 + -3 = 726
Reorder the terms:
-3 + 9x2 = 726
Solving
-3 + 9x2 = 726
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '3' to each side of the equation.
-3 + 3 + 9x2 = 726 + 3
Combine like terms: -3 + 3 = 0
0 + 9x2 = 726 + 3
9x2 = 726 + 3
Combine like terms: 726 + 3 = 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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