X = 9
you multiply both sides by 3 because you have to get rid of it and what you do to one side you do to the other then you divide both sides by 2 to isolate the variable. i hope that makes sense.
228/28 1/2 ÷ 4 3/4 = 57/2 × 4/19= 228/38 = 6
Btw i did keep change flip
H= ut -16 t^2
h = 144(2) - 16 (4)
= 288 - 64 = 224
