5x^2+y^2=21

Simple and best practice solution for 5x^2+y^2=21 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 5x^2+y^2=21 equation:


Simplifying
5x2 + y2 = 21

Solving
5x2 + y2 = 21

Solving for variable 'x'.

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

Add '-1y2' to each side of the equation.
5x2 + y2 + -1y2 = 21 + -1y2

Combine like terms: y2 + -1y2 = 0
5x2 + 0 = 21 + -1y2
5x2 = 21 + -1y2

Divide each side by '5'.
x2 = 4.2 + -0.2y2

Simplifying
x2 = 4.2 + -0.2y2

Reorder the terms:
-4.2 + x2 + 0.2y2 = 4.2 + -0.2y2 + -4.2 + 0.2y2

Reorder the terms:
-4.2 + x2 + 0.2y2 = 4.2 + -4.2 + -0.2y2 + 0.2y2

Combine like terms: 4.2 + -4.2 = 0.0
-4.2 + x2 + 0.2y2 = 0.0 + -0.2y2 + 0.2y2
-4.2 + x2 + 0.2y2 = -0.2y2 + 0.2y2

Combine like terms: -0.2y2 + 0.2y2 = 0.0
-4.2 + x2 + 0.2y2 = 0.0

The solution to this equation could not be determined.

See similar equations:

| 6x-3=17+4x | | 12/21 | | (x-3)2=12 | | 88/8 | | log(2)(5x-5)=4 | | 3x+-2=5+-3 | | 3y+1=4y+11 | | -3/5(20r-5)-(-6r) | | (x+2)(3x-1)=6 | | 14+14+11+11+12+9+15+16+13= | | 2w^2-13+15= | | (x^2y/x^5)^3 | | Y=1/3x-100 | | 1/3×251.2 | | 8y-30-2y=6(y-5) | | 8y+14-1y=7(y+2) | | 60=20/x | | 8y+14=7(y+2) | | x^2+bx-42= | | 24+36+x=180 | | 3xb=0.85 | | 6x^2+56x-9=0 | | 4(X^2+121)+64=16 | | 15P/45=180 | | r/j-8=-3v/j | | x^2-bx+21= | | (-9^3y^4)(1/3x^5)(-2y^2) | | Y=3(X-7) | | (-93y4)(1/3x5)(-2y2) | | v^2=40 | | -4=2a^2-3a | | 6x-30-1x=5(x-6) |

Equations solver categories