Question

Solve the system. Explain your answer using words, symbols, or both.

x+2y=8

x+y=2

Answer 1

Using substitution method for to solve, X = -4 and Y = 6

Explanation:

1) x+2y = 8

2) x+y = 2

solve 2)

x = 2-y

Then replaced it in 1)

(2-y) + 2y = 8

2 + y = 8

y = 6

then

x = 2 - 6

X = -4