If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x+2x+4x=450
We move all terms to the left:
x+2x+4x-(450)=0
We add all the numbers together, and all the variables
7x-450=0
We move all terms containing x to the left, all other terms to the right
7x=450
x=450/7
x=64+2/7
| -4n(n-2)=6(n+3)-11n | | 4(3x+8)-9=2x(6x-8)+39 | | 9d–7d+9=11 | | -27=t–16 | | 11=8(7+p)+11 | | -35=5(q-3)-15 | | N÷1/2-9=4n+5 | | 18/(-6)=a | | 23=2p=5 | | -8*(-3)=a | | -35=5(q–3)–15 | | -42=-6(4+q) | | -2(2+y)=-12 | | 3(x−2)=18 | | 3(y-6)-5=-3(-8y+5)-3y | | 10z-2z=-64 | | 12x+2=2x+12 | | 11+7y=-4y | | -7t-5t=-84 | | 12x-9+8x+14=180 | | 7x-3+4x=19 | | 9x+80=x-48 | | x+8+3x-4=x+13 | | 5x+4=1x | | -8.1=w/6+11.1 | | 10x-3/5=9x | | -8x+3x=-55 | | 17+8x=5x11 | | 21=-3(a-3) | | .6-7(a+1)=-3(2-a) | | 21=-3(a–3) | | 210+x=425 |