1) 331 students went on a field trip. Six buses were filled and 7 students traveled in cars. How many students were in each bus?

2) Aliyah had $24 to spend on seven pencils. After buying them she had $10. How much did each pencil cost?

3. 6a + 5a = −11
4. −6n − 2n = 16
5.4x + 6+ 3 = 17
6.0 = −5n − 2n
7. 6r − 1 + 6r = 11
8. r + 11 + 8r = 29
9. −10 = −14v + 14v
10. −10p + 9 p = 12
11. (7 − 2) ÷ 5
12.5 + (16 + 2) ÷ 3
13.2 + 12 ÷ 2 + 1
14.−3 × 2 × 2(−3 − 1)
15. ((−16 − (−2 + 1)) × 2) ÷ 5