If it's not what You are looking for type in the equation solver your own equation and let us solve it.
2s-s-s+3s=15
We move all terms to the left:
2s-s-s+3s-(15)=0
We add all the numbers together, and all the variables
3s-15=0
We move all terms containing s to the left, all other terms to the right
3s=15
s=15/3
s=5
| 3x+5+2x=6x-2-x | | 3w-25=190 | | 40−4x=6x−32 | | 2(4x—5)=3x—45 | | 4x+12=8+4x | | 30.6=0.1d+3.4 | | 7p(P-3)=35 | | -5.5+x=3 | | 30.6=0.1d | | y4−1=2 | | 1p+3=29 | | -(n+2)=6-5n | | 8=-10t+48 | | 6a+5+4a+25=360 | | y4− 1=2 | | 6a+5=4a+25 | | 0.75*n=35 | | 2j=9.2 | | 4(x+8)-5x=7 | | 17=11-2a | | -8(5a+2)=-216 | | 2x*6=24 | | 69=-6s+75 | | 50=14x | | r+1=9.3 | | 12−3b=9 | | -4/5x+6=26 | | -80=+5k-40 | | 5/6=2/3m-1/2 | | 3x-x+7=-156 | | 3(x+2)=4x–2x+9 | | (4x-26)=(3x+16) |