Question

What is the value of x in the equation 3x -1/9

y = 18, when y = 27?
5
7
45 63

Answer 1

`x=7`

Explanation:

we have

`3x-(1)/(9)y=18`

Substitute the value of y=27 in the equation and find the value of x

so

`3x-(1)/(9)(27)=18`

`3x-3=18`

`3x=18+3`

`3x=21`

`x=7`