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Simplifying
2x2 + 15 = 465
Reorder the terms:
15 + 2x2 = 465
Solving
15 + 2x2 = 465
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-15' to each side of the equation.
15 + -15 + 2x2 = 465 + -15
Combine like terms: 15 + -15 = 0
0 + 2x2 = 465 + -15
2x2 = 465 + -15
Combine like terms: 465 + -15 = 450
2x2 = 450
Divide each side by '2'.
x2 = 225
Simplifying
x2 = 225
Take the square root of each side:
x = {-15, 15}
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