Answers for Revision

a) x = 10
b) x = -6
c) x = -12
d) x = -23
e) x = -16
f) x = 15/4
g) x = 15/2
h) x = -9/2

REVISION..

LINEAR EQUATIONS' (HOMEWORK) ANSWER

LINEAR EQUATIONS’(HOMEWORK) ANSWERS
1) t = 7
2) p = 13
3) c = -12
4) a = 72
5) m = 12
6) y = 7
7) z = 4
8) x = 3
9) d = 9
10) b = 24
11) t = 40
12) b = 18
13) x = 2
14) x = 16/5
15) i = 3
16) p = -2
17) m = 2
18) m = -5/4
19) Total marks, p = 96
20) 3p = 36
21) Width = 6 meter
22) RM 7

LINEAR EQUATIONS' EXAMPLES

Solving example No 1:
find x if 2x + 4 = 10

steps to solve 2x + 4 = 10

1.Isolate "x" to one side of the equation by subtracting 4 from both sides:
2x + 4 - 4 = 10 - 4
2x = 6

2.Divide both sides by 2:
2x / 2 = 6 / 2
x = 3

3.Check your work with the original equation:
2x + 4 = 10
2(3) + 4 = 10
6 + 4 = 10

Solving example #2: find x if 3x - 4 = -10
steps to solve 3x - 4 = -10

1.Isolate "x" to one side of the equation by adding 4 to both sides:
3x - 4 + 4 = -10 + 4
3x = -6

2.Divide both sides by 3:
3x / 3 = -6 / 3
x = -2

3.Check your work with the original equation:
3(-2) - 4 = -10
-6 - 4 = -10

ANSWER FOR LINEAR EQUATIONS

ANSWER FOR LINEAR EQUATIONS

1) x = -8
2) x = -6
3) y = 7
4) k = -11
5) x = 5
6) x = 2
7) x = 50
8) m = 4
9) x = -1/6