Subtract 9x from its side and move it over, -9x+y=7/3 should be your answer, hope i helped
        
                    
             
        
        
        
Answer: I think the answer is #1
 
        
             
        
        
        
in this one x=9 ask if you need an explanation
 
        
             
        
        
        
16^.5 =4
1/2 power is the same as square root
So y = 4x
        
             
        
        
        
Answer:
Maggie spent =30
Karen spent = 10
Jasmine spent =20
Step-by-step explanation:
In this we use algebra to solve.we give the sisters unknowns, to help us solve the equation.
we dont know how much jasmine used so we give her the unknown x.you can use any letter but ill us x.
karen used half as much as karen so we give her 1/2x because it was half of jasmine.maggie used 3 times that of karen so w give her 3(1/2x).
maggie =3(1/2x)
Karen =1/2x
jasmine =x
3(1/2x) + 1/2x + x = 60
3/2x + 1/2x + x = 60
2x + x = 60
3x=60
x=20
where we have x =we replace with 20
e.g karen 1/2x => 1/2 x 20 =10
if you need any clarifications please do tell me in the comment section.i would like to help more if you need help.thx
      Hope this helps and if it does mark as branliest anwer thx