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Simplifying
3x2 = 1800 + -5x2
Solving
3x2 = 1800 + -5x2
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '5x2' to each side of the equation.
3x2 + 5x2 = 1800 + -5x2 + 5x2
Combine like terms: 3x2 + 5x2 = 8x2
8x2 = 1800 + -5x2 + 5x2
Combine like terms: -5x2 + 5x2 = 0
8x2 = 1800 + 0
8x2 = 1800
Divide each side by '8'.
x2 = 225
Simplifying
x2 = 225
Take the square root of each side:
x = {-15, 15}
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