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33(1+(1+x)^2+(1+x)^3+(1+x)^4+(1+x)^5+(1+x)^6+(1+x)^7+(1+x)^8+(1+x)^9+(1+x)^10+(1+x)^11)=450
We move all terms to the left:
33(1+(1+x)^2+(1+x)^3+(1+x)^4+(1+x)^5+(1+x)^6+(1+x)^7+(1+x)^8+(1+x)^9+(1+x)^10+(1+x)^11)-(450)=0
We add all the numbers together, and all the variables
33(1+(x+1)^2+(x+1)^3+(x+1)^4+(x+1)^5+(x+1)^6+(x+1)^7+(x+1)^8+(x+1)^9+(x+1)^10+(x+1)^11)-450=0
We move all terms containing x to the left, all other terms to the right
33(1+(x+1)^2+(x+1)^3+(x+1)^4+(x+1)^5+(x+1)^6+(x+1)^7+(x+1)^8+(x+1)^9+(x+1)^10+(x+1)^11)=450
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