Answer:
First and last one
Step-by-step explanation:
You have to use Pythagoras. Square the first two numbers (smallest) and then add them together. Square root the answer and if it gives you the largest number in the set, it‘s right
Hope this helps!
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infinite Solutions
12x+1 = 12x+3-2
12+1 = 12x+1
The equation is same on both sides, so x can be anything.
