If it's not what You are looking for type in the equation solver your own equation and let us solve it.
8u-2u=42
We move all terms to the left:
8u-2u-(42)=0
We add all the numbers together, and all the variables
6u-42=0
We move all terms containing u to the left, all other terms to the right
6u=42
u=42/6
u=7
| 8z+3z=-19 | | 3h+5+6h-7=34 | | 9-2x-4=8x-5 | | 5(x+3)+3=2(10-x-3(3x-10) | | 14x+21=4x-9+6x | | 2(w+5)-5w=-2 | | -14=8x/4(3x-5) | | 63-4yy=11 | | 2g–1=3 | | -(3x-15)=6(2x=5) | | 7(2n+5)=8(7n+4)+5 | | $1.53+q=5.00 | | 3+4x=32x-53 | | 6=-3(n+6)+3(-6n-6) | | 8=6+a/2 | | x+4x=35;7 | | 9^x-4*3^x+3=0 | | 3/4w-8=1/4w+9 | | 8d-14=2d+22 | | 8(p-4)=-38+6p | | 18+2x=-10 | | 15+25x=215 | | 0.16(y-3)+0.18y=0.04y-0.01(60) | | 3(x+10)5=11 | | 7/10x+1=-15 | | z2=169 | | 4(2y+4)+3=2y+25 | | -119+9x=-326 | | 52=8-4(x-7) | | 4x+10=2x+54 | | 55+55+3c+2=180 | | 4(w-1)=-3w+24 |