Answer: Heyaa!
The Answer is 2x+2
Step-by-step explanation:
<em>Simplify the expression.</em>
<em />
<u>hopefully this helps you !</u>
<em />
- Matthew ~
O.o that so hard but my big sister know how to do it
Answer:
6
Step-by-step explanation:
y + 1
= 7
y +
= 
y = 40/6 = 20/3 = 6
Answer: 54 mph
Step-by-step explanation:
d-the distance
s+9 - the speed to the conference
d=6*(s+9)
s- is the speed on the way back home
d=7*s
so 6*(s+9)=7*s
6s+54=7s
-6s -6s
54= 7s-6s
s=54 mph