Answer:
7=x
Step-by-step explanation:
2x+34=4(x+5)
2x+34=4x+20
-2x -2x
34=2x+20
-20 -20
14=2x
/2 /2
12.5
2x+34=4x+9
*2x -2x
34=2x+9
34-9
25=2x
25/2
boom
Answer is in the file below
tinyurl.com/wpazsebu
there are 10 of the other kind of cars