Solve the system of equations y=5x-1 y=9x-9
1 answer:
Answer:
Look at the equations:
y
=
−
9
x
−
21
and
y
=
5
x
+
7
Because both equations equal (y), they both equal the same.
If an equations says "
y
=
−
9
x
−
21
" , that means we can replace (y) with
−
9
x
−
21
.
Therefore when i take the equation:
y
=
5
x
+
7
, we can replace (y) to get:
−
9
x
−
21
=
5
x
+
7
Now isolate (x):
−
9
x
−
21
=
5
x
+
7
⇔
−
21
=
14
x
+
7
⇔
−
28
=
14
x
⇔
x
=
−
2
You might be interested in
<span>If MNO = PQR, which of the following can you conclude as being true?
A. No = QR
Plz branliest
</span>
U can see that 5/9 has a greater value thx hope it helped
Answer:
A
Step-by-step explanation:
If you simplify you get -45=75 and that’s not true.
Answer: 3 days
Step-by-step explanation: It would take 3 days for seven hens to 7 lay eggs because each hen lays an egg each day.
1 hen/1 egg = 3 days
7 hens/7 days = 14 eggs
7 hens/3 days = 7 eggs
24/95 or decimal form is 0.2526
