Answers:
Activity 1.
1) k - 7
2) m + 10
3) 2x - 18
4) n + 4 = 12
5) n - 9 = 11
6) 5n = 50
7) n + 10 = 20
8) 6(20 + t)
9) 10k - 15
10) 3n + 6 = 15
Activity 2.
1) Product of two and number a.
2) A number x increased by three.
3) Product of two and f increased by five.
4) Negative three times the sum of m and n.
5) Sum of q and r divided by eight.
6)
7) Four subtracted from y
8) Product of five and g increased by the product of four and h.
9) Half of a number n.
10) m increased by seven.
Yan po
