Hey!
Hope this helps...
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x + y = 3
x = 3 - y
y = 2x - 15
y = 2(3 - y) - 15
y = 6 - 2y - 15
y = -2y - 9
3y = -9
y = -3
y = 2x - 15
-3 = 2x - 15
-2x = -12
x = 6
So...
The answer is: (6, -3)
You plug in the values so it would be 24=15k. Divide by 15 on both sides so k=24/15=1.6. :)
Answer:
m = 4
you can find the answer for this on m a t h w a y (without the spaces)
I hope this helps!
System A: The system has exactly one solution (3,1)
System B: No Solution
System C: Infinite many solutions