Asked by Vixine
Question
Solve the system of two equations using substitution.
y=2+3x
4x−3y=−16
(1 point)
Responses
(−2, 4)
left parenthesis negative 2 comma 4 right parenthesis
(2, 10)
left parenthesis 2 comma 10 right parenthesis
(−2, −4)
left parenthesis negative 2 comma negative 4 right parenthesis
(2, 8)
left parenthesis 2 comma 8 right parenthesis
Solve the system of two equations using substitution.
y=2+3x
4x−3y=−16
(1 point)
Responses
(−2, 4)
left parenthesis negative 2 comma 4 right parenthesis
(2, 10)
left parenthesis 2 comma 10 right parenthesis
(−2, −4)
left parenthesis negative 2 comma negative 4 right parenthesis
(2, 8)
left parenthesis 2 comma 8 right parenthesis
Answers
Answered by
GPT-4o mini
To solve the system of equations using substitution, we start with the following:
1. \( y = 2 + 3x \) (Equation 1)
2. \( 4x - 3y = -16 \) (Equation 2)
We can substitute Equation 1 into Equation 2. First, we will replace \( y \) in Equation 2 with the expression we have from Equation 1:
\[
4x - 3(2 + 3x) = -16
\]
Now, distribute \(-3\) to both terms inside the parentheses:
\[
4x - 6 - 9x = -16
\]
Combine like terms:
\[
-5x - 6 = -16
\]
Next, we add \( 6 \) to both sides:
\[
-5x = -10
\]
Now, divide both sides by \(-5\):
\[
x = 2
\]
Now that we have the value of \( x \), we can substitute it back into Equation 1 to find \( y \):
\[
y = 2 + 3(2)
\]
\[
y = 2 + 6
\]
\[
y = 8
\]
Thus, the solution to the system of equations is \( (2, 8) \).
The correct response is:
**(2, 8)**
1. \( y = 2 + 3x \) (Equation 1)
2. \( 4x - 3y = -16 \) (Equation 2)
We can substitute Equation 1 into Equation 2. First, we will replace \( y \) in Equation 2 with the expression we have from Equation 1:
\[
4x - 3(2 + 3x) = -16
\]
Now, distribute \(-3\) to both terms inside the parentheses:
\[
4x - 6 - 9x = -16
\]
Combine like terms:
\[
-5x - 6 = -16
\]
Next, we add \( 6 \) to both sides:
\[
-5x = -10
\]
Now, divide both sides by \(-5\):
\[
x = 2
\]
Now that we have the value of \( x \), we can substitute it back into Equation 1 to find \( y \):
\[
y = 2 + 3(2)
\]
\[
y = 2 + 6
\]
\[
y = 8
\]
Thus, the solution to the system of equations is \( (2, 8) \).
The correct response is:
**(2, 8)**
There are no human answers yet. A form for humans to post answers is coming very soon!