Answer:
x=-7
Step-by-step explanation:
-30=5(x+1)
6-1(x+1)
x=-1-6
=-7
Th equation would be y=6x. Bruce unloads 6 boxes in 1 minute, so that would be your unit rate. X represents how many minutes he takes to unload the boxes, so for each minute Bruce unloads 6 boxes.
3 : 3,6,9,12,15,18,21,24,27,30
4 : 4,8,12,16,20,24,28,32,36
7: 7,14,21,28,35,42,49,56,63
9: 9,18,27,36,45,54,63,72,81