3a+21=7-49

Simple and best practice solution for 3a+21=7-49 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 3a+21=7-49 equation: 



3a+21=7-49

We move all terms to the left:

3a+21-(7-49)=0

We add all the numbers together, and all the variables

3a+21-(-42)=0

We add all the numbers together, and all the variables

3a+63=0

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

3a=-63

a=-63/3

a=-21

See similar equations:

| (9x+3)/4=13-(2x-5)/5 | | 9+3z^2=36 | | -3*8+2y=-14 | | -3x+2*5=-14 | | -3x+2*6=-14 | | -3x+2*7=-14 | | -3x+2*8=-14 | | -3x+2*9=-14 | | -2*9+y=-9 | | Y=18x-x^2 | | 3=9n×-1 | | -3*5+2y=-14 | | -3*5+2y=-14. | | 3(4+x-2)=15 | | -3*6+2y=-14 | | -2x+3=-9. | | -2x+-4=-9 | | -2-x+-4=-9 | | -3*2+2y=-14 | | x=3*5-18 | | 3(y-2)=6y-1-3y | | -5(3y-18)+3y=30 | | -6=8x-8 | | 2=-4-6n | | 2x+3x+4=9 | | -3=m+7 | | 13g-12g-1=10 | | B-b+5b=20 | | 5j-4j=8 | | 7b-4b-b+1=15 | | 4a-3a=9 | | 3s+1=-1 |

Equations solver categories