Solve y=1-8x-120+5x/20/100x+1600

$$y = 1 - 8 x - 120 + \frac { 5 x / 20 } { 100 } x + 1600$$

Solve for y

$$y=\frac{x^{2}-3200x+592400}{400}$$

Solution Steps

Subtract 120 from 1 to get -119.

$$y=-119-8x+\frac{\frac{5x}{20}}{100}x+1600$$

Divide 5x by 20 to get \frac{1}{4}x.

$$y=-119-8x+\frac{\frac{1}{4}x}{100}x+1600$$

Divide \frac{1}{4}x by 100 to get \frac{1}{400}x.

$$y=-119-8x+\frac{1}{400}xx+1600$$

Multiply x and x to get x^{2}.

$$y=-119-8x+\frac{1}{400}x^{2}+1600$$

Add -119 and 1600 to get 1481.

$$y=1481-8x+\frac{1}{400}x^{2}$$

Solve for x (complex solution)

$$x=20\sqrt{y+4919}+1600$$

$$x=-20\sqrt{y+4919}+1600$$

Solve for x

$$x=20\sqrt{y+4919}+1600$$

$$x=-20\sqrt{y+4919}+1600\text{, }y\geq -4919$$