Solve for the value of y in the equation y=−2x+5 when x=2.

You’re trying to find the value of y when x=2. You can use either equation to find the value of y. Start with y=−2x+5. Substitute 2 for x in this equation.
y=−2x+5
y=4x−7

y
=
-2x
+ 5
y
=
−2

+ 5

1 answer

To solve for the value of \( y \) in the equation \( y = -2x + 5 \) when \( x = 2 \), substitute \( 2 \) for \( x \):

\[ y = -2(2) + 5 \]

Now calculate:

\[ y = -4 + 5 \]

\[ y = 1 \]

So, when \( x = 2 \), the value of \( y \) is \( 1 \).

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