Question

solve the following equation and verify the answers
(a) 9x-7=20
Strictly don't write rubbish answer​

Answer 1

Answer:

9x-7=20

9x=20+7

9x=27

x=27/9

x=3 is your answer.

Answer 2

Answer:

9x-7=20

9x=20+7

9x= 27

x= 27/9

x=3

verification

9(3)-7= 20

9(3)=20+7

27=27

hence verified

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