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
Answer:
This Is Science Not Math So Pls Dont Post Irrelevant Things To Maths
Step-by-step explanation:
Answer:
The answer is the second option or B, you have to divide the top number by the bottom number to get a unit rate.
Answer:
The answer is C/85,000
Step-by-step explanation:
I’m bad at math too sorry i can’t helppp i just need to answer one to ask a question
