Page 183 - Mathematics

3 4 28 34y+
3. (a) 5z (b) 2x − 3y (c) − b (g)
2 3 15
3 3 a + 3b m − 4
(d) + d (e) (f)
4 4 8 12n
2
5. (a) 4x + 2 7x − 15 (b) 5pq − 3q Tanzania Institute of Education
2
(c) 4xy + 2xy (d) 10x − 16y
7. (a) 22 (b) 2.4 (c) 16 (d) −

2
9. (a) 6a (b) 2x− (c) 18y − 75 (d) 5n

Exercise 5.2

1
1. 5x = 20 7. 2s += 7 13. 4x = + y
2
83s −
4
3. x + 21 125= 9. 5x += 8)
8 4(x +
5. 99 m− = 63 11. 5x + 6y = 15

Exercise 5.3

1. (a) x = 13 (h) x = 40 (o) x = 10
(b) x = 16 (i) x = 10
(c) x = (j) x = 20
5
25
(d) x = 25 (k) x = 24

13
(e) x = (l) x =
6
2 27
(f) x = (m) x =
8
7
(g) x = 10 (n) x =
6
Mathematics Form One
x = 2 x = 8
3. (a)

x =-6 x = 2
(b)

177

Mathematics form 1.indd 177
25/10/2024 09:52:17
Mathematics form 1.indd 177 25/10/2024 09:52:17