Solve, using linear combination.

5x + y = 2

4x + y = 4

5x+y=2

4x+y=4

5x+y=2

-1 (4x+y=2)

5x+y=2

-4x-y=2

your y'all cancel out so you r left with

x=-2

then you plug the x in to one of the equations

5 (-2) + y=2

-10+y=2

then add 10 to both sides

y=12

Answer: x = - 2 y = 12

there's the work and all its simple you just have to figure out how to get rid of y or x (which ever is easier) and you can figure it out after that