7/a=21/a

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



7/a=21/a

We move all terms to the left:

7/a-(21/a)=0



Domain of the equation: a!=0

a∈R





Domain of the equation: a)!=0

a!=0/1

a!=0

a∈R



We add all the numbers together, and all the variables

7/a-(+21/a)=0

We get rid of parentheses

7/a-21/a=0

We multiply all the terms by the denominator


7-21=0

We add all the numbers together, and all the variables

-14!=0

There is no solution for this equation

See similar equations:

| 8(5c-1)-4=38+8 | | 1/3x+5=1/3x | | 2y=4×+10 | | 3x2-1=47 | | 1÷2x-3=3÷2x+4 | | 7x^2+10=5x | | .5x+.2(18-x)=5.4 | | 7/10(10k+20)=3(k-2 | | -58-3-(5x-6)=25 | | 12-3x=2(4x-5.5) | | 7/3=13/m | | v+4/5=31/4 | | 64-x=2x+3 | | n/5+1=-1 | | -11=8x^2-6x | | -8=1/4d-45 | | -4x-143=133-16x | | -4x-143=133-16 | | 12-3x=2(4x-55) | | 54+x=4x | | -4+13v+5=6v+32 | | 14-s/3=s | | 5x+10-4x+16=17 | | C=1/4d-45 | | 7b−0.4​=6b−1.4 | | 3x+19/7+x+45/6=12 | | X+5+2(x-3)+2=0 | | 6c=4c-4 | | 6x+15-5x=-3-13 | | -241+8x=-5x+71 | | 2.5x=690 | | n÷-3+5=-1 |

Equations solver categories