If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x+x+8+x-4=28
We move all terms to the left:
x+x+8+x-4-(28)=0
We add all the numbers together, and all the variables
3x-24=0
We move all terms containing x to the left, all other terms to the right
3x=24
x=24/3
x=8
| 6-7x=6+8x | | 21-2d=13 | | 7x+5=4x-16 | | 8k=7=7k | | 64-5y=16 | | 3(n−69)=51 | | g/5+49=57 | | -6z+-13=17 | | $52-$23=x | | 2*(8*y)=3y+12 | | 4d—3=47 | | (-4x^2+27x-39)^2=0 | | –6z+–13=17 | | 8x+6x-7x=3976 | | 15=z-(-5) | | 2d+8+3d-10=180 | | 3x+2=-3x+2 | | -3d+1=-5 | | -7b=4 | | -3z+7-3z+8z+40=0 | | -2(f-46)=-90 | | x*2x=500 | | 5k+10=180 | | 5k+3k+10=180 | | -5p-9+6p=4 | | 5(r-77)=75 | | -3u-1=8 | | 13x-10=8x-3 | | 3v−1=11 | | v/7-1.5=-12.7 | | 5/7y+2=1/2+13/4 | | 51=7d-5 |