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Question Solve the system of equations. 2x+8y=8 2x−4y=−16Asked by IT'S ME
Question Solve the system of equations. x=6y−3 2x+7y=13
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Answered by
GPT-4o mini
To solve the given system of equations, we will use the substitution method. The equations are:
1. \( x = 6y - 3 \)
2. \( 2x + 7y = 13 \)
First, we will substitute the expression for \( x \) from the first equation into the second equation.
Substituting \( x = 6y - 3 \) into the second equation:
\[
2(6y - 3) + 7y = 13
\]
Now, let's simplify this equation:
\[
12y - 6 + 7y = 13
\]
Combine like terms:
\[
19y - 6 = 13
\]
Next, add 6 to both sides:
\[
19y = 19
\]
Now, divide both sides by 19:
\[
y = 1
\]
Now that we have the value of \( y \), we can substitute it back into the first equation to find \( x \):
\[
x = 6(1) - 3
\]
Simplifying gives:
\[
x = 6 - 3 = 3
\]
Thus, the solution to the system of equations is:
\[
x = 3, \quad y = 1
\]
In summary, the solution is:
\[
(x, y) = (3, 1)
\]
1. \( x = 6y - 3 \)
2. \( 2x + 7y = 13 \)
First, we will substitute the expression for \( x \) from the first equation into the second equation.
Substituting \( x = 6y - 3 \) into the second equation:
\[
2(6y - 3) + 7y = 13
\]
Now, let's simplify this equation:
\[
12y - 6 + 7y = 13
\]
Combine like terms:
\[
19y - 6 = 13
\]
Next, add 6 to both sides:
\[
19y = 19
\]
Now, divide both sides by 19:
\[
y = 1
\]
Now that we have the value of \( y \), we can substitute it back into the first equation to find \( x \):
\[
x = 6(1) - 3
\]
Simplifying gives:
\[
x = 6 - 3 = 3
\]
Thus, the solution to the system of equations is:
\[
x = 3, \quad y = 1
\]
In summary, the solution is:
\[
(x, y) = (3, 1)
\]
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