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Simplifying
8x2 + 9 = 777
Reorder the terms:
9 + 8x2 = 777
Solving
9 + 8x2 = 777
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 + 8x2 = 777 + -9
Combine like terms: 9 + -9 = 0
0 + 8x2 = 777 + -9
8x2 = 777 + -9
Combine like terms: 777 + -9 = 768
8x2 = 768
Divide each side by '8'.
x2 = 96
Simplifying
x2 = 96
Take the square root of each side:
x = {-9.797958971, 9.797958971}
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