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Simplifying
28 + -63u2 = 0
Solving
28 + -63u2 = 0
Solving for variable 'u'.
Move all terms containing u to the left, all other terms to the right.
Add '-28' to each side of the equation.
28 + -28 + -63u2 = 0 + -28
Combine like terms: 28 + -28 = 0
0 + -63u2 = 0 + -28
-63u2 = 0 + -28
Combine like terms: 0 + -28 = -28
-63u2 = -28
Divide each side by '-63'.
u2 = 0.4444444444
Simplifying
u2 = 0.4444444444
Take the square root of each side:
u = {-0.666666667, 0.666666667}
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