If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x(2x)=220
We move all terms to the left:
x(2x)-(220)=0
We move all terms containing x to the left, all other terms to the right
x2x=220
x=220/1
x=220
| -5(v-2)=-9v+26 | | 27.4=6.3+5.6+8.4+x | | 2w+53=17w+38 | | 5y-20+y+100=180 | | -4w+19=-9(w-6) | | −8x−9=−21 | | 27.4-(6.3+5.6+8.4)=x | | 18=p-(-4) | | C=600x+300,000/x | | 4a+5=2a+21 | | -10(10+4b)=-10(6b-3) | | 1/10*y+2=-16 | | -4(2-x)=4/5(x+34) | | 21/7/(15a)=5/14(.8a) | | p+43=2(p) | | 4x2+8=-30 | | 4a+5=21+2a+23 | | 4x−8=−32 | | x+28=2(x) | | 4a+5=21+2a | | 12/x=8/4 | | 3b2+2=-4 | | -6-1/2*n=8 | | 4x=7(x+9)=19 | | 581 +c=54 | | 5x2+2=-12 | | -2x+4-5x=-17 | | 7b2+3=-10 | | 7-2(5x+3)=4 | | x6+2=−16 | | p+11=2(6p) | | x-3/2=2x+5/3 |