5x+3=3x+7
<em></em>-3 = -3
2x+3=7
-3= -3
2x=4
x=2
The first equation is

The second equation is

If you sum the two equations you'll cancel y:

And since the sum must be 11, we have y=9.
7-4=3
10-7=3
13-10=3
we can see that this is an arithmetic sequence with a difference of 3
the nth term=the first term +(n-1) times the difference
so a(n)=4+3(n-1)
Answer:
b. reflection
Step-by-step explanation:
just took the test
Answer:
0 and 4
Step-by-step explanation: