Question

2. Solve each of the following equations by using
inverse operations
A. (i) a + 7 = 12
(ii) 10 + c =23
(iii) 9 = d + 2
(iv) h + 8 =-12
1
(v) x + 9.2 = 10 (vi) a + 3+ = 5
2 1
2
(vii)
(viii) y + 10 = 10
3 3
= tn​

Answer 1

Answer:

1. a + 7 = 12

a = 12 - 7

a = 5

2. 10 + c = 23

c = 23 - 10

c = 13

3. 9 = d + 2

9 - 2 = d

7 = d

4. h + 8 = - 12

h = -12 - 8

h = -20

5. y + 10 = 10

y = 10 - 10

y = 0