X = y + 12. You then substitute or plug in that from the first equation into the second equation. You get (y+12)+y=18, then you simplify to get your y value. In this case y = 3. The you can plug your y value into either equation. (x+3=18) or (x-3=12) or (x=3+12) either way you get x=15 and y=3.
Yes it does and it would also be true if the y was 4 or 6 because 2 plays into all of those but it would be false if it was something like 5
Answer:
h= 4
Step-by-step explanation:
A= 1/2(b)(h)
10= 1/2(5)(h)
10= 2.5h
/2.5 /2.5
h= 4
Answer:
53/54 = 106/108
Step-by-step explanation:
You can find the answer because 53/54 * 2/2 = 106/108
2/2 = 1 - right? When you multiply any number by one, it stays the same. That's how you can tell, 53/54 = 106/108.
Try different problems and see wich two get you too 9 r5
