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Simplifying
7x2 = 4x2 + 0.75
Reorder the terms:
7x2 = 0.75 + 4x2
Solving
7x2 = 0.75 + 4x2
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-4x2' to each side of the equation.
7x2 + -4x2 = 0.75 + 4x2 + -4x2
Combine like terms: 7x2 + -4x2 = 3x2
3x2 = 0.75 + 4x2 + -4x2
Combine like terms: 4x2 + -4x2 = 0
3x2 = 0.75 + 0
3x2 = 0.75
Divide each side by '3'.
x2 = 0.25
Simplifying
x2 = 0.25
Take the square root of each side:
x = {-0.5, 0.5}
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