-x-3x=12

Simple and best practice solution for -x-3x=12 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 -x-3x=12 equation:


-x-3x=12

We simplify the equation to the form, which is simple to understand 
-x-3x=12

We move all terms containing x to the left and all other terms to the right. 
-1x-3x=+12

We simplify left and right side of the equation. 
-4x=+12

We divide both sides of the equation by -4 to get x. 
x=-3

See similar equations:

| 21xy-280vx^3+35x^4-168vy=0 | | 3w-8=-20 | | (2y+1)(y-1)=(y+5)(2y-5) | | 14=8+(x+3/4) | | 18.5+-7.75= | | 10m-2/5=9(3/5) | | 16x^2=-6x | | -7(2d+8)=4d+16 | | 2x-1/2=x+5 | | 1/3(x-6)^2+3 | | -6x+747=300 | | 4x+9=8x-3 | | 3(5q+3)=4(4-5q) | | 10m-(2/5)=9/(3/5) | | 4(n+3)=n-3 | | u+4u-2=7u-3u+8 | | 2-1(m+4)=3m-2 | | 8r+26=8-6(1-2r) | | 4r-9=3r | | 50x^2+165x-270=0 | | 6y=3y+3 | | 10m-2/5=9/3/5 | | 5x-(3x-8)=-14 | | 50t=30(t-2) | | 3y+4=4y-34 | | -63/10=-21/10b | | log[4](x+62)+log[4](x-1)=3 | | 8(x-3)=6(x+2)-4 | | (x+8)(x+4)=0 | | 1.4(s+6)=7 | | 0.4x=-6.8 | | 5(r+7)=35+5r |

Equations solver categories