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Simplifying
9x2 + 2 = 8
Reorder the terms:
2 + 9x2 = 8
Solving
2 + 9x2 = 8
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-2' to each side of the equation.
2 + -2 + 9x2 = 8 + -2
Combine like terms: 2 + -2 = 0
0 + 9x2 = 8 + -2
9x2 = 8 + -2
Combine like terms: 8 + -2 = 6
9x2 = 6
Divide each side by '9'.
x2 = 0.6666666667
Simplifying
x2 = 0.6666666667
Take the square root of each side:
x = {-0.816496581, 0.816496581}
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