**Question:**Solve the system and state if it is an independent or dependent system.

12) 4x + 2y = -10

3x + y = -6

13) 3x + 4y = 18

4x - 5y = -7

14) 2/3x + 1/4y = 4

X = -3/8y + 6

15) 1/2x + 1/3y = 6

Y = 1/2x + 2

28) State and explain your method of solution, and then state your answers

Y = -4x

X - y = -10

29)2x - 2y = 5

5x - 3y = 11

30) 3x - 2y = 0

7x - 8y = 10

12) x=-1; y=-3; independent system

13) x=2; y=3; independent system

14) both equations are same; dependent system

15) x=8; y=6; independent system

28) substitution; substitute y=-4x into the second equation; x=-2; y=8

29) elimination; x=7/4; y=-3/4

30) substitution; substitute y=3x/2 (original equation: 3x-2y=0); x=-2; y=-3

you should be doing this by yourself, even though i'm giving you the answers.

It's not that hard.

And don't just use these answers to get homework grade. I recommend you to solve it by yourself first, and compare the answers. When you get wrong, check what you did wrong. That way helps you a lot. I did that when I didn't know.

Once again don't just copy it down. Once you start doing that, you are really gonna get in trouble understanding trigonometry, calculus, etc.

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