Answer:
b = -9.
Explanation:
0.24+1.9b=0.6(4b+7.1)+0.48
0.24 + 1.9b = 2.4b + 4.26 + 0.48
0.24 - 4.26 - 0.48 = 2.4b - 1.9b
-4.5 = 0.5b
b = -4.5 * 2
= -9.
7.5m questions
10.0m answers