Answer:
35+(y-15)+3y=180
35+y-15+3y=180
35-15+y+3y=180
20+4y=180
4y=160
y=40
3y=120
a. Slope= -5 y-intercept = 3
b. Slope = 1/4 y-intercept=-6
c.Slope=0 y-intercept =5
Step-by-step explanation:
x = 30
4x + 2x = 180
6x = 180
