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Simplifying
x2 + 4x2 = 7x2
Combine like terms: x2 + 4x2 = 5x2
5x2 = 7x2
Solving
5x2 = 7x2
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-7x2' to each side of the equation.
5x2 + -7x2 = 7x2 + -7x2
Combine like terms: 5x2 + -7x2 = -2x2
-2x2 = 7x2 + -7x2
Combine like terms: 7x2 + -7x2 = 0
-2x2 = 0
Divide each side by '-2'.
x2 = 0
Simplifying
x2 = 0
Take the square root of each side:
x = {0}
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