Answer:
x - 3 x = 19
2x + 4 x = 5.5
Step-by-step explanation:
for x-3 you need to find x which is 19 because 19 - 3 is 16
and for the on below or 2x+4 it you add 5.5 because 2*5.5 is the 11 plus 4 is 15
