Answer:
hope you understand this my special keyboard accomodation is bugging out
Step-by-step explanation:
We can substitute
y
=
x
−9
in the first equation to get the value of
x
We get
x
−
9
=
3
x
+
7
Transposing
3
x
to the left hand side and
−
9
to the right hand side, we get
x
−
3
x
=
7
+
9
−
2
x
=
16
Dividing both sides by
−
2
, we get
−
2
x
−
2
=
16
−
2
x
=
−
8
Substituting
x
=
−
8
in the second equation, we get
y
=
−
8
−
9
y
=
−
17
