Y=2/3x-1 y=-x+4?

Jun 7, 2018

$x = 3 , y = 1$,

Explanation:

I take Y and y is the same variable, so that
$y = \frac{2}{3} x - 1 = - x + 4$
If so, we get:
$\frac{2}{3} x - 1 + 1 + x = - x + 4 + 1 + x$
I am adding x+1 on both sides so that all x terms come to the left and all constants to the right:
$\left(1 + \frac{2}{3}\right) x = 5$
$\frac{5}{3} x = 5$
$x = 3$
That gives $y = 4 - x = 4 - 3 = 1$