Question

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

Answer 1

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 = $\frac{- (y + 3k)}{- ( k -3)}$

x = $\frac{ (y + 3k)}{ ( k -3)}$

Thus, the value of x has been calculated.

Answer 2

Move all terms to the left side and set equal to zero. then set each factor equal to zero
X =$\frac{3k+y}{k-3}$