5/15=7/x

Simple and best practice solution for 5/15=7/x 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 5/15=7/x equation: 


D( x )

x = 0

x = 0

x = 0

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

5/15 = 7/x // - 7/x

5/15-(7/x) = 0

5/15-7*x^-1 = 0

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

x^-1 = 1/21

-1 < 0

1/(x^1) = 1/21 // * x^1

1 = 1/21*x^1 // : 1/21

21 = x^1

x = 21

x = 21

See similar equations:

| 5x+y=1300 | | Z+4=2-c-1 | | 4q-20=8 | | m/3=4=7 | | -4y-17=-5y-6-10 | | 2-1/3X/5 | | f(x)=3x^3-4x^2+6x-3 | | -7x-3=-52 | | 8k-2+12k=-9+19k | | 200-2f+5f=230 | | 4(3x-2)=10x+4 | | -5x+3=-2x+3 | | 3x-1=2x+24 | | Y+4.18=6.28 | | 3(x+10)+2(x+15)=180 | | -17+9h+3=7h+18 | | 5x+2=3(3x-1) | | -2(x+15)=4 | | 10p-s=3s+14 | | 6*2x=3 | | -16+7n=8n+6-2 | | 2(4x+1)=6 | | f(x)=4x^3+3x^2-6x-3 | | 75(x+25)=180 | | 5x+6=20-8x | | 8x+10=-9x | | 1-6x=x+14 | | 7-6(4x+8)=5 | | -5y-5=-4y-6 | | 4x/6=2.5 | | 6(x-5)/3x-1 | | x-3.5=0 |

Equations solver categories