Question 289135
{{{220+2y<380}}} Start with the given inequality.



{{{cross(220-220)+2y<380-220}}} Subtract 220 from both sides.



{{{2y<160}}} Combine like terms.



{{{(cross(2)y)/cross(2)<160/2}}} Divide both sides by 2 to isolate 'y'



{{{y<80}}} Reduce.



So the solution is {{{y<80}}}. To graph this, set up a number line in which you can see the value 80. Now plot an open circle at 80 and shade everything to the left of 80 and denote an arrow to show that the shaded line goes on forever to the left.