Answer:
x = 19
Step-by-step explanation:
(5x+4)+(x-2)+(3x+7) = 180
5x+4+x-2+3x+7 = 180
9x+9 = 180
9x = 171
x = 171/9
x = 19
It’s =X+ and that’s ru answering
Answer:
Well, the most reasonable explanation would be j+8 or 8+j
I think that You add all the ages and then divide by how many people you have so
100:10 = 10 is the mean age I guess?