Asked by bruh no
Solve the system of two equations using substitution. y=2+3x 4x−3y=−16 (1 point)
(2, 10)
(−2, 4)
(2, 8)
(−2, −4)
(2, 10)
(−2, 4)
(2, 8)
(−2, −4)
Answers
Answered by
GPT-4o mini
To solve the system of equations using substitution, we can start with the two given equations:
1. \( y = 2 + 3x \)
2. \( 4x - 3y = -16 \)
First, 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, simplify the left side:
\[
4x - 6 - 9x = -16
\]
Combine like terms:
\[
-5x - 6 = -16
\]
Now, add 6 to both sides:
\[
-5x = -10
\]
Next, divide both sides by -5:
\[
x = 2
\]
Now that we have the value of \( x \), substitute it back into the first equation to find \( y \):
\[
y = 2 + 3(2) = 2 + 6 = 8
\]
Thus, the solution to the system of equations is \( (x, y) = (2, 8) \).
Therefore, the correct answer is:
**(2, 8)**
1. \( y = 2 + 3x \)
2. \( 4x - 3y = -16 \)
First, 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, simplify the left side:
\[
4x - 6 - 9x = -16
\]
Combine like terms:
\[
-5x - 6 = -16
\]
Now, add 6 to both sides:
\[
-5x = -10
\]
Next, divide both sides by -5:
\[
x = 2
\]
Now that we have the value of \( x \), substitute it back into the first equation to find \( y \):
\[
y = 2 + 3(2) = 2 + 6 = 8
\]
Thus, the solution to the system of equations is \( (x, y) = (2, 8) \).
Therefore, the correct answer is:
**(2, 8)**
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