Answer:
23
Step-by-step explanation:
I'm going to start by solving the first equation like so,
y - 8 = 15 (Remember what we do to one side we MUST do to the other)
+8 +8
y = 23
So know we know y = 23 What we have to do now is replace 23 for y in the second equation.
y - 0 = ?
23 - 0 = 23
Hope that helps and have a great day!
