Answer:
Step-by-step explanation:
Both teachers and children are people. If there were 4 teachers and 9 children already at the table, sitting down, when Jim arrived, then that would be 13 people at the table before he sit and 14 people after he sits.
8x - 7 = 3x + 9
8x - 3x = 9 + 7
5x = 16
x = 16/5 = 3 1/5
Answer:
x+3
Step-by-step explanation:
21=7x3. Hence answer is 3
Answer:
first one: yes
second one: yes
third one: no
fourth one: yes
Step-by-step explanation: