9x^2+7y^2=42

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Solution for 9x^2+7y^2=42 equation:


Simplifying
9x2 + 7y2 = 42

Solving
9x2 + 7y2 = 42

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-7y2' to each side of the equation.
9x2 + 7y2 + -7y2 = 42 + -7y2

Combine like terms: 7y2 + -7y2 = 0
9x2 + 0 = 42 + -7y2
9x2 = 42 + -7y2

Divide each side by '9'.
x2 = 4.666666667 + -0.7777777778y2

Simplifying
x2 = 4.666666667 + -0.7777777778y2

Reorder the terms:
-4.666666667 + x2 + 0.7777777778y2 = 4.666666667 + -0.7777777778y2 + -4.666666667 + 0.7777777778y2

Reorder the terms:
-4.666666667 + x2 + 0.7777777778y2 = 4.666666667 + -4.666666667 + -0.7777777778y2 + 0.7777777778y2

Combine like terms: 4.666666667 + -4.666666667 = 0.000000000
-4.666666667 + x2 + 0.7777777778y2 = 0.000000000 + -0.7777777778y2 + 0.7777777778y2
-4.666666667 + x2 + 0.7777777778y2 = -0.7777777778y2 + 0.7777777778y2

Combine like terms: -0.7777777778y2 + 0.7777777778y2 = 0.0000000000
-4.666666667 + x2 + 0.7777777778y2 = 0.0000000000

The solution to this equation could not be determined.

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