Answer:
You can substitute
4
as
x
in the first equation because
x
and
4
are equal.
2
(
4
)
+
y
=
29
8
+
y
=
29
y
=
21
Step-by-step explanation:
Answer: I belive the answer would be 18 the only number we have is 52 and 36 the other answers just don't make sense, I am only taking 9th grade but hey I try!
Step-by-step explanation:
Answer:
10350.98
Step-by-step explanation:
Answer:
y=-10
Step-by-step explanation:
-30-5y=20
+30 +30
------------------
-5y=50/(-5)=-10
y=-10