Answer:
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If you find a first you will be able to find b a little faster then it is super easy after that you got this!
Answer:
y = 5
Step-by-step explanation:
−x+y=0 −2x+y=−5
Multiply the first equation by -2
-2(-x+y=0)
2x-2y =0
Add this to the second equation
2x-2y =0
−2x+y=−5
-------------------
0x -y = -5
-y =-5
Multiply by -1
y = 5
You subtract 16 from 50
so 50-16=34
so your answer is 34 degree