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If the dogs, cats and parrots represents unknown find them. Substitute each of the values so obtained in the equations and verify the answers.

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(i) 1 dog + 1 dog + 1 dog = 24

3 dog = 24

1 dog = \(\frac{24}{3}\) = 8

1 dog = 8

(ii) 1 dog + 1 cat + 1 cat = 14 

1 dog + 2cat = 14 

8 + 2cat = 14 

2cat = 14 – 8 

2 cat = 6

cat = \(\frac{6}{2}\) = 3

1 cat = 3

(iii) 1 dog + 1 cat – 1 parrot = 9 

8 + 3 – 1 parrot = 9 

8 + 3 – 9 = 1 parrot 

11 – 9 = 1 parrot 

2 = 1 parrot 

1 parrot = 2

(iv) 1 dog + 1 cat + 1 parrot = ? 

8 + 3 + 2 = 13 

Verification: 

(i) 8 + 8 + 8 = 24 

(ii) 8 + 3 + 3 = 14 

(iii) 8+ 3 – 2 = 9 

(iv) 8 + 3 + 2 = 13

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