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Simplifying
x2 + 3 + 2x2 + 4 + -7 = 0
Reorder the terms:
3 + 4 + -7 + x2 + 2x2 = 0
Combine like terms: 3 + 4 = 7
7 + -7 + x2 + 2x2 = 0
Combine like terms: 7 + -7 = 0
0 + x2 + 2x2 = 0
x2 + 2x2 = 0
Combine like terms: x2 + 2x2 = 3x2
3x2 = 0
Solving
3x2 = 0
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Divide each side by '3'.
x2 = 0
Simplifying
x2 = 0
Take the square root of each side:
x = {0}
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