Answer:
x=
2/7
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
7/3x 3/7=2/3(3/7) 
so 2/7
 
        
             
        
        
        
So you can use substitution...which is where you have Y all alone on one side of your equation and then plug it in to the other equation...2x-5=-3x+10 and you.solve for X. So x= 3. Then plug 3 into one of the original equations... Y=2(3)+5. So Y= 11.
        
             
        
        
        
3 : 3 times 6 is 18, 2 times 9 is 18 and 3 times 3 is 9 plus 9 is 18
        
             
        
        
        
Answer:A) 1.5
Step-by-step explanation: Bob runs at the rate of 8mins per mile
In 60mins his rate would be=60/8=7.5
Let a be the distance he further runs south
2s+3.25
Total distance covered in 50mins=Time=distance/speed=
50/60
50/60=2s +3.25/7.5
Cross multiply 
60(2s+3.25)=50×7.5
120s+195=375
120s=375-195
S=180/120
S=1.5