Question

xy+(4(20))>x-5y(2+9-7)

Answer 1

\[xy+(4\times 20)>x-5y(2+9-7)\]\[xy+80>x-10y-45y+35y\]\[xy+80>x-20y\]\[xy-x>-100\]\[x(y-1)>-100\]

Answer 2

@yummydum PLZ check your algebra

Answer 3

And what are we supposed to do?

Answer 4

oh so sorry \[xy+80>x-20y\]\[x(y-1)+80>20y\]

im not sure but i just simplified as much as i know

Answer 5

Dont u think u again made a mistake

Answer 6

its -20y ...my bad

Answer 7

Here is how to solve.....
We can simplify the given expression as follow\[y=1-\frac{ 100 }{ x+20 }\]Thus graph the expression in the xy - coordinate plane and solve the inequality

Answer 8

its actually\[y>-{1659\over x}\]