Question

b+ c = -5 --------------------(1) 9b + 4 c +60 =0 ----------------(2) solve equations (1) and (2) [ ]

Answer 1

Answer:

b=-8         c=3

Step-by-step explanation:

b+c= -5

4b+4c= -20 -------------------------------(1)

9b+4c+60=0

9b+4c= -60 -------------------------------(2)

(2) - (1)

5b= -40

b = -8

c = 3