Answer:

Step-by-step explanation:
,
,
, Subtract 23 and 3x from both sides and simplify:
, Divide both sides by 2 and simplify: 
<em>Hope this helps!!!</em>
The men didn't pay $29 because they only payed $27.........$25 was for the room and $2 was for the tip to the bellhop
Explanation- The room was originally $30, but they got a $5 meaning they only payed $25 and then they payed the bellhop $2 which equals to $27
Answer:
x + 4y = 4
4y = 4 - x
multiply both sides by 1/4
y = 1/4( 4- x)
y = 1- 1/4x