Question

What value of y makes the number sentence shown true?

y−3=15

Answer 1

Y-3=15
y-3=15+3=18
—- ——-
Y=-3+3 cancels each other out. And gives you y alone but REMEMBER WHAT YOU DO TO ONE SIDE YOU HAVE TO DO ON THE OTHER.

That is why you see that -3 becomes + 3 when moved to get y=18

Hope you are his helps her understand more letters are the same way Good Luck

Answer 2

18

Explanation:

y-3=15

+3 +3

if you add 3 to the other side, you would get:

y=18