Use substitution to solve the linear system of equations.
y= x - 2
2x + 4= y

y= x -2

y = 2x + 4

2x + 4 = x - 2

x + 4 = -2

x = -6

y = -6 - 2 = -8

(-6, -8) is the answer

Step-by-step explanation:

answer: c.  

step-by-step explanation:

mixtures containing substances that get attracted to magnet can be separated using a magnet. we can separate iron from a mixture of sand and iron, as only iron attracts to the magnet.