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Simplifying
7n2 + -10 = 53
Reorder the terms:
-10 + 7n2 = 53
Solving
-10 + 7n2 = 53
Solving for variable 'n'.
Move all terms containing n to the left, all other terms to the right.
Add '10' to each side of the equation.
-10 + 10 + 7n2 = 53 + 10
Combine like terms: -10 + 10 = 0
0 + 7n2 = 53 + 10
7n2 = 53 + 10
Combine like terms: 53 + 10 = 63
7n2 = 63
Divide each side by '7'.
n2 = 9
Simplifying
n2 = 9
Take the square root of each side:
n = {-3, 3}
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