12+3/4a=21

Simple and best practice solution for 12+3/4a=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 12+3/4a=21 equation: 



12+3/4a=21

We move all terms to the left:

12+3/4a-(21)=0



Domain of the equation: 4a!=0

a!=0/4

a!=0

a∈R



We add all the numbers together, and all the variables

3/4a-9=0

We multiply all the terms by the denominator


-9*4a+3=0

Wy multiply elements

-36a+3=0

We move all terms containing a to the left, all other terms to the right

-36a=-3

a=-3/-36

a=1/12

See similar equations:

| -3(x-1)=6x+3 | | 23=3y+11 | | 2+9d=10+5d | | W-17=2w | | -3h+17+19h=-17-h | | x2+7=209 | | y=5.6-0.1(40) | | -2.76-2.7k=-7.3k | | a/7=17 | | x^2+4x-49=5x | | -7u=-5u+4 | | g/3+19=27 | | 9k+8=20k-18+2k | | 8(4-2x)=6(5x-10) | | 14v-2=19v+18 | | (8r-8)+(7r+6)=180 | | -10+8v-10=5v+10 | | 10-6n=-8-8n | | 7-3q=4q | | -2p-4=-3p+6-10 | | 45/110=100/x | | (2w-1)+(w-8)=180 | | 9-6m=1-5m | | 2-10t=-4-9t | | -5r=-8+3r | | 5/6n=10= | | (5y-3)(2y+1)=180 | | -8-2j=6j | | -14=x/2+2 | | -6-7b=-4b | | -9+5u=6u | | 44/66=20/x |

Equations solver categories