[tex]\text{Hello There!}[/tex]
[tex]\text{You are adding and subtracting for this equation.}[/tex]
[tex]\text{$500-160=340}[/tex]
[tex]\text{Since 340 is a factor of 20}[/tex]
[tex]\text{You add +20 until you get 340.}[/tex]
[tex]\text{20}\times{17=340}[/tex]
[tex]\text{So your answer is going to be}[/tex]
[tex]\huge\text{17}[/tex]
[tex]\rule{250}{1.5}[/tex]
