7/x=21/9

Simple and best practice solution for 7/x=21/9 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 7/x=21/9 equation: 


D( x )

x = 0

x = 0

x = 0

x in (-oo:0) U (0:+oo)

7/x = 21/9 // - 21/9

7/x-(21/9) = 0

7/x-7/3 = 0

7*x^-1 = 7/3 // : 7

x^-1 = 1/3

-1 < 0

1/(x^1) = 1/3 // * x^1

1 = 1/3*x^1 // : 1/3

3 = x^1

x = 3

x = 3

See similar equations:

| y+5+9x+28=180 | | 1m-7=10 | | r=5(3.14)b-m | | 15-x/9=6 | | 3y/6=2x+1 | | (n-5)(n-5)=7 | | M=5(3.14)rb | | 5(5-2)-8k=-34 | | x+5+9y+28=180 | | X^2+9=100 | | 200/0.3 | | (0.00000001+x)x=0.00000000000001 | | m+13.55=-15.45 | | 2x^3-5x^2-18x-9=0 | | 39=7x+18 | | 72=i^2(8) | | 4x+22+x-2=180 | | 0.1=12x+((1-x)(0.09)) | | (3*30+5)-7= | | 36=i^2(9) | | 12=x/-21/3 | | 36=i^2+9 | | 3/4+1/8 | | 20=I^2+5 | | 14=x/4+7 | | 14.8a=102.12 | | 3y-(3)+3=0 | | 4x-1/2=x+5/3 | | -7x-5=-61 | | 18x/6=-9 | | (7.5+-0.4y)+y=9.0 | | 5x-10=3x+10 |

Equations solver categories