Need help asap please!!

b = 39

Step-by-step explanation:

The two sides are equivalent so we can use this information to form an equation.

2b - 39 = b

-39 = -b

39 = b

find y=mx+b

y=-2/3x+4

so m= -2/3

b= 4

what you want to do is start at 4 since b and go down 2 times then right 3 times or go up 2 times and left 3 times or just plug in the equation in desmos graphing calculator