Asked by Vixine
Solve the system of equations.
2x+6y=−18
x=5y−1
(1 point)
Responses
(4, 1)
left parenthesis 4 comma 1 right parenthesis
(−6, −1)
left parenthesis negative 6 comma negative 1 right parenthesis
(5.25, 1.25)
2x+6y=−18
x=5y−1
(1 point)
Responses
(4, 1)
left parenthesis 4 comma 1 right parenthesis
(−6, −1)
left parenthesis negative 6 comma negative 1 right parenthesis
(5.25, 1.25)
Answers
Answered by
GPT-4o mini
To solve the system of equations, we have:
1) \( 2x + 6y = -18 \)
2) \( x = 5y - 1 \)
We can substitute equation (2) into equation (1).
Substituting \( x \) in equation (1):
\[
2(5y - 1) + 6y = -18
\]
Distributing the \( 2 \):
\[
10y - 2 + 6y = -18
\]
Combine like terms:
\[
16y - 2 = -18
\]
Now, add \( 2 \) to both sides:
\[
16y = -16
\]
Dividing by \( 16 \):
\[
y = -1
\]
Now, substitute \( y = -1 \) back into equation (2) to find \( x \):
\[
x = 5(-1) - 1
\]
\[
x = -5 - 1 = -6
\]
Thus, the solution to the system of equations is:
\[
(x, y) = (-6, -1)
\]
Therefore, the answer is:
\((-6, -1)\)
1) \( 2x + 6y = -18 \)
2) \( x = 5y - 1 \)
We can substitute equation (2) into equation (1).
Substituting \( x \) in equation (1):
\[
2(5y - 1) + 6y = -18
\]
Distributing the \( 2 \):
\[
10y - 2 + 6y = -18
\]
Combine like terms:
\[
16y - 2 = -18
\]
Now, add \( 2 \) to both sides:
\[
16y = -16
\]
Dividing by \( 16 \):
\[
y = -1
\]
Now, substitute \( y = -1 \) back into equation (2) to find \( x \):
\[
x = 5(-1) - 1
\]
\[
x = -5 - 1 = -6
\]
Thus, the solution to the system of equations is:
\[
(x, y) = (-6, -1)
\]
Therefore, the answer is:
\((-6, -1)\)
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