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Simplifying
9n2 + 7 = 11
Reorder the terms:
7 + 9n2 = 11
Solving
7 + 9n2 = 11
Solving for variable 'n'.
Move all terms containing n to the left, all other terms to the right.
Add '-7' to each side of the equation.
7 + -7 + 9n2 = 11 + -7
Combine like terms: 7 + -7 = 0
0 + 9n2 = 11 + -7
9n2 = 11 + -7
Combine like terms: 11 + -7 = 4
9n2 = 4
Divide each side by '9'.
n2 = 0.4444444444
Simplifying
n2 = 0.4444444444
Take the square root of each side:
n = {-0.666666667, 0.666666667}
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