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Simplifying
200 + -2x2 = 5x2
Solving
200 + -2x2 = 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.
200 + -2x2 + -5x2 = 5x2 + -5x2
Combine like terms: -2x2 + -5x2 = -7x2
200 + -7x2 = 5x2 + -5x2
Combine like terms: 5x2 + -5x2 = 0
200 + -7x2 = 0
Add '-200' to each side of the equation.
200 + -200 + -7x2 = 0 + -200
Combine like terms: 200 + -200 = 0
0 + -7x2 = 0 + -200
-7x2 = 0 + -200
Combine like terms: 0 + -200 = -200
-7x2 = -200
Divide each side by '-7'.
x2 = 28.57142857
Simplifying
x2 = 28.57142857
Take the square root of each side:
x = {-5.345224838, 5.345224838}
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