Answer:
All you have to do is combine the like terms. Once you do that you get: -4x+3y=-11
8 x 5 = 40
40 x 18 = 720
Hope this helps!
Answer:
I found the x values. Figure out the lengths by substituting the x-values!
Step-by-step explanation:
Feel free to ask if you don't understand what I'm doing here