Question

Solve this system of equations:



What is the value of x?

Answer 1

2

Explanation:

Substitute y=2x in the first equation into the second.

The second equation then becomes;

x = -(2x)+6

x = -2x+6

Collectiing like terms, more -2x to the left,

x+2x =6

3x=6

x=
`(6)/(3)`

x= 2