If it's not what You are looking for type in the equation solver your own equation and let us solve it.
15XX=4
We move all terms to the left:
15XX-(4)=0
We move all terms containing X to the left, all other terms to the right
15XX=4
X=4/1
X=4
| 15+6x=1/2(24x-6-9+7x) | | 4y-5=2÷ | | 15+6x=1/2((24x-6)-(9+7x)) | | 18z=0 | | 6x-55=65 | | x=0.45x | | 9x-34=74 | | 2x+3=x+1+20 | | 9x1=107-3x | | 3(x-4)=3x+18 | | 6m+2m=13 | | -5=-2/9x+2 | | 5^x-12=1/125^12/5 | | -40=4/a | | 0.2(x-8)=0.24 | | b+(-5)=-15 | | 2=x5−6 | | 0.45y-0.8=1 | | 7x^2−24x+9=0 | | 1/4x+1/2=4/2 | | 5b-9=3+4b | | z+(3z+1)+54+204=360 | | 136x+1+43x=180 | | -18-a=-16 | | -3x+5/x-6=-2/3 | | 3n-4=-31 | | a1/2+a1/2=0 | | 3/2*x+3/2*x=0 | | 4/7x+4/7x=0 | | 2x+7/11=12 | | 2+3x–5=0 | | 1/2x-5=2/3x-7 |