Question
Solve the system of two equations using substitution.
y = 2 + 3x
4x - 3y = -16 (1 point)
(2, 8)
(-2, - 4)
(-2, 4)
(2, 10)
Answers
GPT-4o mini
To solve the system of equations using substitution, we have the equations:
1. \( y = 2 + 3x \)
2. \( 4x - 3y = -16 \)
We can use the first equation to substitute \( y \) in the second equation.
Substituting \( y \) in the second equation:
\[
4x - 3(2 + 3x) = -16
\]
Now, simplify the equation:
\[
4x - 6 - 9x = -16
\]
Combine the \( x \) terms:
\[
-5x - 6 = -16
\]
Now, add 6 to both sides:
\[
-5x = -10
\]
Now, divide by -5:
\[
x = 2
\]
Now that we have the value of \( x \), we can substitute it back into the first equation to find \( y \):
\[
y = 2 + 3(2) = 2 + 6 = 8
\]
Thus, the solution to the system is \( (x, y) = (2, 8) \).
The answer is \( (2, 8) \).
1. \( y = 2 + 3x \)
2. \( 4x - 3y = -16 \)
We can use the first equation to substitute \( y \) in the second equation.
Substituting \( y \) in the second equation:
\[
4x - 3(2 + 3x) = -16
\]
Now, simplify the equation:
\[
4x - 6 - 9x = -16
\]
Combine the \( x \) terms:
\[
-5x - 6 = -16
\]
Now, add 6 to both sides:
\[
-5x = -10
\]
Now, divide by -5:
\[
x = 2
\]
Now that we have the value of \( x \), we can substitute it back into the first equation to find \( y \):
\[
y = 2 + 3(2) = 2 + 6 = 8
\]
Thus, the solution to the system is \( (x, y) = (2, 8) \).
The answer is \( (2, 8) \).