Question

y =2x-6
y=0
solve it simultaneously

Answer 1

y=0

So

y=2x-6

0=2x-6

2x=6

x=6/2

x=3

Answer 2

Heya.

Ur answer is here.

Given, 
Y = 2x -6
It is given that y =0.

So, 2x - 6 = 0

Now, solving it
2x - 6 = 0
2x = 6 
x = 3.

Hence, x = 3.

Hope it helps