7x^2+28y-84=

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Solution for 7x^2+28y-84= equation:


Simplifying
7x2 + 28y + -84 = 0

Reorder the terms:
-84 + 7x2 + 28y = 0

Solving
-84 + 7x2 + 28y = 0

Solving for variable 'x'.

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

Add '84' to each side of the equation.
-84 + 7x2 + 84 + 28y = 0 + 84

Reorder the terms:
-84 + 84 + 7x2 + 28y = 0 + 84

Combine like terms: -84 + 84 = 0
0 + 7x2 + 28y = 0 + 84
7x2 + 28y = 0 + 84

Combine like terms: 0 + 84 = 84
7x2 + 28y = 84

Add '-28y' to each side of the equation.
7x2 + 28y + -28y = 84 + -28y

Combine like terms: 28y + -28y = 0
7x2 + 0 = 84 + -28y
7x2 = 84 + -28y

Divide each side by '7'.
x2 = 12 + -4y

Simplifying
x2 = 12 + -4y

Reorder the terms:
-12 + x2 + 4y = 12 + -4y + -12 + 4y

Reorder the terms:
-12 + x2 + 4y = 12 + -12 + -4y + 4y

Combine like terms: 12 + -12 = 0
-12 + x2 + 4y = 0 + -4y + 4y
-12 + x2 + 4y = -4y + 4y

Combine like terms: -4y + 4y = 0
-12 + x2 + 4y = 0

The solution to this equation could not be determined.

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