Math, asked by animeshsahoo54, 1 year ago

(ii) 21 – 3(x – 7) = x + 20.

Answers

Answered by MrCombat

7

Answer:

21-3(x-7)=x+20

21-3x+21=x+20

-3x+42=x+20

-3x-x=20-42

-4x=-22

x=22/4=5.5

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