Question

If 3x + y = k (x-3), then x =

Answer 1

Move all terms to the left side and set equal to zero. then set each factor equal to zero
X =
`(3k+y)/(k-3)`

Answer 2

The above answer will be calculated as -

This is a linear equation in more than one variable. We will convert the equation for the value of x.

We will shift all the other variables other side, except x.

Given,

3x + y = k ( x -3)

3x + y = kx - 3k

3x - kx = - 3k - y

x (3 - k) = - (y + 3k)

x =
`(- (y + 3k))/(- ( k -3))`

x =
`( (y + 3k))/( ( k -3))`

Thus, the value of x has been calculated.