Question

Q20. If x + 1, 3x and 4x + 2 are in AP, find the value of x.​

Answer 1

Answer:

(x+1)+(4x+2)=2(3x)

5x+3=6x

3=6x-5x

3=x

so value of x is 3

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Answer 2

Answer:

x=3

Step-by-step explanation:

According to A.P.,

If a,b,c are in A.P. then,

b-a=c-b

So, 3x-(x+1)=4x+2-3x

3x-x-1=4x-3x+2

2x-1=x+2

2x-x=2+1

x=3