X+7+x=21

Simple and best practice solution for X+7+x=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 X+7+x=21 equation: 



X+7+X=21

We move all terms to the left:

X+7+X-(21)=0

We add all the numbers together, and all the variables

2X-14=0

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

2X=14

X=14/2

X=7

See similar equations:

| 3x+1+1x=2x+13 | | 3n-11=67 | | 5m+1=9-3m | | 3x-2=1x+8 | | d=2d-8+2d+4 | | d/3+3=5 | | k=-9k+10 | | 236532+218347+x/3=215325 | | 5(y-2)-7=-3(-4y+5)-3y | | 20/5/6=x | | -9+2h=-3 | | 4z+8=-4z-2 | | x(x-23)=17(x-23) | | K=49/x | | -8+3b=1 | | 9x+10+4x=10+4x | | 2+h=-5+9-h | | 7z+10-z=8z-2(z-5 | | 3c-10=-4 | | 3-10g=-9g | | 34÷z+0.78=20.78 | | -7f+9=-6f | | 5.04=2/3x | | -9-2d=-3d-9 | | 9d-2d+5d-8=6d | | 13x+15=45x. | | 6(x-8)=8x-32 | | 9d-2d+5d=6d | | 4z/7+8=7 | | -10-p=10+3p | | 6(v-6)-2=-6(-4v+9)-8v | | 4x+1840-2x=2446 |

Equations solver categories