Question

EXERCISE 12 D
Find the value of :
(i) 2x + 3y, when x = 3 and y = 4.
(ii) 4x - 5y, when x = 5 and y = 3.
(iii) 3a - 4b + 5c, when a = 10, b = 7 and c = 5.
(iv) 8m - 5n - 3p, when m = 15, n = -4 and p = 2
(u) 5ab + 7bc - 3ca, when a = 2, b = 3 and c = 4.
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Answer 1

Answer:

1-18

2-5

3-27

4-134

5-90

Answer 2

Answer:

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Step-by-step explanation:

i) 18

ii) 5

iii) 27

iv) 80

v) 90