Math i have a attachment so wait 45 seconds 1st

#1.
4 + 2y = 9  + 2y (2y cancelled out...4 can't equal 9
no solution

#2.
Total paid : $27.90 + $5  = $32.90

2 movie tickets = $20 (each costs $10)
2 popcorns = $11.00 (each cost $5.50)
              $20 + $11 = $31

So $32.90 - $31 = $1.90

So soft drink costs $1.90

#3.
 u + 2 = 4 solve for u
 subtract 2 to both sides
u + 2 - 2 = 4 - 2
simplify
u = 2

Wasssip message me so i can