Question

the mean of 7, 9, x, + 3, 12 2 x - 1 and 3 is 9 find the value of x​

Answer 1

Answer:

x=8

Step-by-step explanation:

7+9+(x+3)+12+(2x-1)+3/6=9

31+(x+3)+(2x-1)=9

x+3+2x-1=9-31

3x+2=22

3x=22+2

3x=24

x=24/3

x=8