Question

20. 3x-1 = 20 तो x-1 का मान होगा ?
(a)7
(b)8
(c)6
(d)5​

Answer 1

Step-by-step explanation:

6. answer is (c) 6

Answer 2

Answer:

3x-1=20

3x=20+1

3x=21

x=7

therefore, x-1

= 7-1= 6

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