C=-y-a/b
Multiply c and y with b
-bc=yb-a
-bc-yb=a
Y=3X+0
It is already in the y= mx+b form.
B. 7 would be the correct answer
9+x / 3x = 5/6
If you look at it as a proportion, then you can "cross-multiply" it"
(9+x) · 6 = 3x · 5
54 + 6x = 15x
Subtract 6x from each side:
54 = 9x
Divide each side by 9 :
6 = x
175t because the motion times the width gives you 175t
