Answer:
Luis:

Marina:

Answer: Marina got the better percent score than Luis
Marina:
Answer:
15/2
Step-by-step explanation:
2/3x-1=4
2/3x=4+1
2/3x=5
x=5/(2/3)
x=(5/1)(3/2)
x=15/2
Collect like terms
-3w - 7 w =5
Divide both sides by -10
-10w =5
w = -1/2