5+3x=4x
only when
x=5
The two expression are only equal at x=5
X= 20
Work:

7 times 2 is 14 so you will
muliltiply 10 by 2 which is 20.
The vertical numbers are the distance and the horizontal numbers are the time in seconds.
Look at where the line is located at the number 20.
It si between the 2 and the 3 on the horizontal line, but you can see it is closer to the 2 than it is the 3, so the time would be 2.2s
As we see, the table shows 0 equals 4, so 4 is our y axis. we now know our equation is y=_x +4.
lets subtract and find the slope using

7-4 3
1-0 1 the slope is 3. lets substitute.
1(3)+4=7
the slope is 3.