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# Use addition or substitution to find the value of y for this set of equations. top line 2x - 3y = -15 bottom line x = 4y

Use addition or substitution to find the value of y for this set of equations. top line 2x - 3y = -15 bottom line x = 4y

x = 4y ---> x - 4y = 0 Let's multiply this equation by (-2)
-2x + 8y = 0
+
2x - 3y = - 15
0   + 5y = -15 ----> y = -3
x = 4 * (-3) -----> x = -12

Thankss

2/25/2013

Hi Amber,

try the methods that we all showed you in your previous questions. I can help you if you get stuck. To get you started try this

2x-3y=-15

x-4y = 0

hope this helps!

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