If it's not what You are looking for type in the equation solver your own equation and let us solve it.
0.30x=15
We move all terms to the left:
0.30x-(15)=0
We move all terms containing x to the left, all other terms to the right
0.30x=15
x=15/0.30
x=50
| 63=286-v | | 5/2x=71 | | 5x-7x=-10 | | |2x+5|-4=21 | | 206=155-u | | 7h-(3)=(1)-2h | | x=+9 | | -w+68=160 | | 5×-7x=-10 | | 4(x-2)=6x+2 | | 4^(x+1)+4^x=320 | | (45)-(3k)=117 | | w/80=35/100w= | | 3(v+2)-5v=-2 | | 41-1x=36 | | P+83=-3p-5 | | 7x+47x=17 | | (x+11)/9-7=2 | | 5-2x=3-x+13 | | 2x2+7x5=1+3x2+7x | | (10/9)x+(4/7)=(8/9)x+(5/7) | | 36-3b=-6(b-7 | | z-358=-8z-7 | | X=-6y-3 | | 2/9x=1/7 | | (x2)-(24)=300 | | 4x-37-x=0 | | c+123=-8c+6 | | (7b)-(80)=4 | | -y-5=y+27 | | −2x−3x2−70=0 | | 7p-4=6p+15 |