Question

What is the value of x, given the following system of linear equations? x + y = 8 and x - y = 2

Answer 1

Answer:

$x = 5$

Step-by-step explanation:

$x + y = 8 \\ x - y = 2 \\ x + y + (x - y) = 8 + 2 \\ x + y + x - y = 10 \\ 2x = 10 \\ \frac{2x}{2} = \frac{10}{2} \\ x = 5 \\ \\ x + y = 8 \\ 5 + y = 8 \\ y = 8- 5 \\ y = 3 \\ \\ x - y = 2 \\ 5 - 3 = 2 \\ 2 = 2$

Answer 2

Answer:

6

Step-by-step explanation