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Simplifying
13x2 + -3 = 4209
Reorder the terms:
-3 + 13x2 = 4209
Solving
-3 + 13x2 = 4209
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '3' to each side of the equation.
-3 + 3 + 13x2 = 4209 + 3
Combine like terms: -3 + 3 = 0
0 + 13x2 = 4209 + 3
13x2 = 4209 + 3
Combine like terms: 4209 + 3 = 4212
13x2 = 4212
Divide each side by '13'.
x2 = 324
Simplifying
x2 = 324
Take the square root of each side:
x = {-18, 18}
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