Answer:9
Step-by-step explanation:
12-9=3 12-3=9 3+9=12
So C=9
Rember a variable without a coefficient or number is 1 so 1×2+3 1×2=2 2+3=5
Answer:
n= -2
Step-by-step explanation:
If you have any questions about the way I solved it, don't hesitate to ask ;)
Greetings! Hope this helps!
Answer
D {-3, 5}
R: {0,4}
Have a good day!
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A brainliest would help tons! :D