Question 175586
I am assuming the underline _ is suppose to be an = sign and I will do this problem based on that assumption.
:
{{{5x<=20}}}given
:
{{{x<=4}}}divided both sides by 5
:
plot the vertical line x=4 which is parallel to the y axis and 4 units to its right. Then plot points at either side to see what works as a solution. everything to the left of a solid vertical line will fit the solution