4x+21=x-9

Simple and best practice solution for 4x+21=x-9 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 4x+21=x-9 equation: 



4x+21=x-9

We move all terms to the left:

4x+21-(x-9)=0

We get rid of parentheses

4x-x+9+21=0

We add all the numbers together, and all the variables

3x+30=0

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

3x=-30

x=-30/3

x=-10

See similar equations:

| x+1=-x-15 | | x8=2x+1 | | 5x18=x+50 | | -4(6+3)3(12x-7)=24 | | 4x+19=x+40 | | 2x+17=5x+38 | | -4(6+3x)3(12-7)=24 | | 2x17=5x+38 | | 3x2=7x-6 | | -3(2-x)3(15+4)=36 | | 4m/5+7/10=m | | 3(2-x)3(15+4)=36 | | x+15=-3x+39 | | -x-16=3x+20 | | 6(3-x)+6=22x | | 8x(15-5x)-6=39 | | -8+9x=8x | | 25=3x-x-15 | | 3x+32=10x-32 | | 4100=14x+180 | | 9(x+10)=-36 | | -0.95x-x^2+0.255=0 | | 47-3*5^2x-4*5^x=-28-4*5^x | | 15-0.7x=1.5 | | 2y+4.5=y+9.2 | | 19-3xx=7 | | 0.9=1-x | | x+9=80 | | x+9=。80 | | 5x2+3x–4=0 | | 6(3x+7)=-102 | | 0.65×x=13 |

Equations solver categories