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(0.18*1.99x)-0.78-0.82x^2+(2*1.33x)=0
We add all the numbers together, and all the variables
-0.82x^2+(+0.18*1.99x)+(+2*1.33x)-0.78=0
We get rid of parentheses
-0.82x^2+0.18*1.99x+2*1.33x-0.78=0
Wy multiply elements
-0.82x^2+0.18*1.99x+2x-0.78=0
We add all the numbers together, and all the variables
-0.82x^2+2x+0.18*1.99x-0.78=0
We move all terms containing x to the left, all other terms to the right
-0.82x^2+2x+0.18*1.99x=0.78
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