21+7a=49

Simple and best practice solution for 21+7a=49 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+7a=49 equation: 



21+7a=49

We move all terms to the left:

21+7a-(49)=0

We add all the numbers together, and all the variables

7a-28=0

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

7a=28

a=28/7

a=4

See similar equations:

| 2.43x=-3.33 | | 294=6(-8n+1) | | 6.5x=3.4*4.9 | | -24=-3(a+8)+2a | | 3x-5(-4x)=23 | | 4x+3(-5+4x)=1-x | | 2-3(x-8)=8 | | 70=22x+4 | | 54-x=196 | | 7(7v+6)+8(8v+4)=74 | | 15-(6-7z=2+6z | | 54=-6(3+4n) | | 30x+3=39+15x | | 64=-5-3(1-8k) | | 46x=47x-2 | | 4(x-2)=3(x=3) | | -5=-4(1-3r) | | 3v+3v−2=10 | | 1324x-34=x33 | | 6-(6-2x)+4x=4 | | -4h+-28=40 | | 8x+4=276 | | 2a=10/5 | | 7+2m=5*3 | | -3+8(2-7n)=181 | | 7/4(x)=-21/4 | | -5-4x=x+13 | | 7+2m/3=5 | | 7/4x=-21/4 | | -20h+-28=40 | | 3x*2=11 | | 3(m+2)=1/4(12m-24) |

Equations solver categories