<span>Sam had to substitute 100 instead of X
</span><span>5x+3x+20 =
8x + 20 =
8*100 + 20 =
800 + 20 =
820 </span>← answer
Add all the x up and then you add all the ones that doesn't have an x then divide those 2 together.
×=46
54
5x and 7y. Keep up the good work