Question

2What is the value of x in the equation 3x - 1/9 y = 18, when y = 27?507ОООО4563Mark this and retumSave and Exit

Answer 1

`3x\text{ -}(1)/(9)y\text{ = 18}`

simply substitute y = 27, in the above equation

`3x\text{ -}(1)/(9)(27)\text{ = 18}`

3x - 3 = 18

add 3 to both-side of the equation

3x - 3 + 3 = 18 + 3

3x = 21

divide both-side of the equation by 3

3x/3 = 21/3

x=7

Hence the value of x is 7