Page 92 - Mathematics

Engage in Activity 5.2 to learn how to use mathematical software in solving
different linear equations.

Activity 5.2: Solving linear equations by using mathematical software

1. Identify different mathematical software which can be used in solving
systems of linear equations algebraically or graphically.
2. Study the basic procedures for solving linear equations by using the
identified software.
3. Use the software to solve different equations and check your answers by
substitution.
Tanzania Institute of Education

Exercise 5.3

1. Find the value of x in each of the following equations.
x 3
3
(a) x + 12 = 25 (h) −= 5 (o) x −=
15
5 5
8
(b) x −= 8 (i) 0.2x += 9
7
5
7
(c) 3x = 15 (j) 0.6x −=
x x − 6 2x + 3 x − 5
(d) 5 = 5 (k) 7 − 4 = 2
3 15
(e) 2x + 12 = 25 (l) 3x −=
(f) 2x −= (m) 7x + 1 = 14
8 8
2
x 3x + 2
(g) += 5 (n) = 4
3
5
5
2. Find the solution in each of the following equations.

(a) y = (d) 10 y− = 1
3
(b) 2 y− 6 = 5 (e) 6 y− 1 = = 5 3

Mathematics Form One 3. Show the solution in each of the following equations on a number line.
(c) 2y =
(f) y −
3
3

10
(a)

=
x−
3 (c) 3 x−
5 =
3
1
(b)
2 x = (d)
6
x +
4
2 =
−−
2
86
25/10/2024 09:51:28
Mathematics form 1.indd 86
Mathematics form 1.indd 86 25/10/2024 09:51:28