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Simplifying
9x2 + -7 = 893
Reorder the terms:
-7 + 9x2 = 893
Solving
-7 + 9x2 = 893
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 + 9x2 = 893 + 7
Combine like terms: -7 + 7 = 0
0 + 9x2 = 893 + 7
9x2 = 893 + 7
Combine like terms: 893 + 7 = 900
9x2 = 900
Divide each side by '9'.
x2 = 100
Simplifying
x2 = 100
Take the square root of each side:
x = {-10, 10}
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