Question

7.

(05.02)
A system of equations is shown below:
x + y = 3
2x − y = 6
The x-coordinate of the solution to this system of equations is




. (4 points)

Answer 1

x = 3

Explanation:

Given the 2 equations

x + y = 3 → (1)

2x - y = 6 → (2)

Adding the 2 equations term by term eliminates the y- term, that is

3x = 9 ( divide both sides by 3 )

x = 3