21=xy

Simple and best practice solution for 21=xy 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 21=xy equation:


Simplifying
21 = xy

Solving
21 = xy

Solving for variable 'x'.

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

Add '-1xy' to each side of the equation.
21 + -1xy = xy + -1xy

Combine like terms: xy + -1xy = 0
21 + -1xy = 0

Add '-21' to each side of the equation.
21 + -21 + -1xy = 0 + -21

Combine like terms: 21 + -21 = 0
0 + -1xy = 0 + -21
-1xy = 0 + -21

Combine like terms: 0 + -21 = -21
-1xy = -21

Divide each side by '-1y'.
x = 21y-1

Simplifying
x = 21y-1

See similar equations:

| 1=2x^2 | | x+x+4+3x-9= | | 24a-6(8-4a)+52= | | w+4=18 | | ax+cy=b | | -4(2n+6)-12=14 | | 3x=5+6x | | 4(2)+-6m=-2 | | 2x^2+3x=84 | | 1+r^10=1.5 | | N^2-5n+12=0 | | -(19+2g)-57+4g= | | .6(x-6)=7.8 | | 3+0.5x^2=16-8x^2 | | 0=-4.9t^2+15t+20 | | 18-9b=2b+4 | | -35-7n=7(-7n+7) | | 5(x+5)+x=4(x+3)+4 | | 16w-15=5+12w | | (-36x^2+144x-60)=0 | | 11-2(8+30)=49 | | -7(x+1)-12=41+3 | | 84y^2+y-9=0 | | 3.6-2.4d=24 | | 8(x+3)+5(x+3)=7x-7 | | 9x+12y=3 | | X+15=3x+20 | | -7(x+1)-12=14+3 | | 1-x^5=0 | | 5a+9c=a | | 8(x+3)+5(x+3)=7x-3 | | 10(x+1)+4x+14+22=82 |

Equations solver categories