Respuesta :
Answer:To solve the system of equations
Step-by-step explanation:
12
�
−
5
�
=
−
20
12x−5y=−20 and
�
=
�
+
4
y=x+4, you can use substitution or elimination methods.
Let's solve it using the substitution method since the second equation is already solved for
�
y.
Given
�
=
�
+
4
y=x+4, substitute this expression for
�
y into the first equation:
12
�
−
5
�
=
−
20
12x−5y=−20
12
�
−
5
(
�
+
4
)
=
−
20
12x−5(x+4)=−20
12
�
−
5
�
−
20
=
−
20
12x−5x−20=−20
7
�
−
20
=
−
20
7x−20=−20
7
�
=
0
7x=0
�
=
0
x=0
Now that we have found the value of
�
x, substitute it back into
�
=
�
+
4
y=x+4 to find
�
y:
�
=
�
+
4
y=x+4
�
=
0
+
4
y=0+4
�
=
4
y=4
Therefore, the solution to the system of equations is
�
=
0
x=0 and
�
=
4
y=4.
Answer: x=0, y=4
Step-by-step explanation:
Please correct me if I'm wrong but this is a system of equations
First, simplify the question into 7x+20=-20
This equates to x=0
y=x+4=4
So, x=0 and y=4
