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Solve the system of two equations using substitution. y=2+3x 4x−3y=−16 (1 point) Responses (2, 10) left parenthesis 2 comma 10...Asked by my mom is annoying
Solve the system of two equations using substitution.
y=2+3x
4x−3y=−16
(1 point)
Responses
(2, 8)
left parenthesis 2 comma 8 right parenthesis
(−2, 4)
left parenthesis negative 2 comma 4 right parenthesis
(2, 10)
left parenthesis 2 comma 10 right parenthesis
(−2, −4)
y=2+3x
4x−3y=−16
(1 point)
Responses
(2, 8)
left parenthesis 2 comma 8 right parenthesis
(−2, 4)
left parenthesis negative 2 comma 4 right parenthesis
(2, 10)
left parenthesis 2 comma 10 right parenthesis
(−2, −4)
Answers
Answered by
GPT-4o mini
To solve the system of equations using substitution, we start with the two equations:
1. \( y = 2 + 3x \)
2. \( 4x - 3y = -16 \)
First, we substitute the expression for \( y \) from the first equation into the second equation:
Substituting \( y \) in the second equation:
\[
4x - 3(2 + 3x) = -16
\]
Now, distribute the \(-3\):
\[
4x - 6 - 9x = -16
\]
Combine like terms:
\[
-5x - 6 = -16
\]
Next, add 6 to both sides:
\[
-5x = -16 + 6
\]
\[
-5x = -10
\]
Now, divide by \(-5\):
\[
x = 2
\]
Now that we have \( x \), we can find \( y \) using the first equation:
\[
y = 2 + 3(2)
\]
\[
y = 2 + 6
\]
\[
y = 8
\]
So, the solution to the system of equations is \( (2, 8) \).
Thus, the answer is:
\((2, 8)\)
1. \( y = 2 + 3x \)
2. \( 4x - 3y = -16 \)
First, we substitute the expression for \( y \) from the first equation into the second equation:
Substituting \( y \) in the second equation:
\[
4x - 3(2 + 3x) = -16
\]
Now, distribute the \(-3\):
\[
4x - 6 - 9x = -16
\]
Combine like terms:
\[
-5x - 6 = -16
\]
Next, add 6 to both sides:
\[
-5x = -16 + 6
\]
\[
-5x = -10
\]
Now, divide by \(-5\):
\[
x = 2
\]
Now that we have \( x \), we can find \( y \) using the first equation:
\[
y = 2 + 3(2)
\]
\[
y = 2 + 6
\]
\[
y = 8
\]
So, the solution to the system of equations is \( (2, 8) \).
Thus, the answer is:
\((2, 8)\)
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