Question

(ii) 21 – 3(x – 7) = x + 20.​

Answer 1

Answer:

21 - 3x + 21 = x + 20

42 - 20 = 4x

x = 22/4

x = 11/2

Answer 2

Answer:

11/2

Step-by-step explanation:

21-3x+21=x+20.

-3x+42=x+20.

-4x=-22

4x=22

x=11/2.

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