Question

You just found that x = 3. You still need to find the value of y when x = 3. Let's use the first equation, y= 3x−5, since it's already written in terms of y. Start by substituting 3 for x in the first equation.
y= 3x−5
x= −2y+11
x = 3

y
=
3x−5

y
=
3 ·
−5

Answer 1

To find the value of \( y \) when \( x = 3 \) using the first equation \( y = 3x - 5 \), we substitute \( x \) with \( 3 \):

\[
y = 3(3) - 5
\]

Now, calculate \( 3 \times 3 \):

\[
y = 9 - 5
\]

Finally, subtract \( 5 \) from \( 9 \):

\[
y = 4
\]

So, when \( x = 3 \), the value of \( y \) is \( 4 \).