Answer:
The statement that's known to be always true is known as tautologies whereas the statement that's known to be always false is known as contradiction.
Answer:
Step-by-step explanation:
513=171x3
171=57x3
57=19x3
19 and 3 are prime numbers
Answer:
Your answer is 3x = 15
Step-by-step explanation:
3x = 15
Since 3 is being multiplied by x, we divide both sides by 3. 3x/3 cancels out, and you're left with x.
15/3 = 5
x = 5
This is my take using algebraic methods.
It depends. For example the GCF of 4 &2 is 4, so in a sense yes. With other numbers (such as odds) that is not always the case :D