We are given the equation $y = 3x - 7$ and an ordered pair $(-1, ?)$. We need to find the missing $y$-coordinate when $x = -1$.

AlgebraLinear EquationsCoordinate GeometrySubstitution
2025/3/6

1. Problem Description

We are given the equation y=3x7y = 3x - 7 and an ordered pair (1,?)(-1, ?). We need to find the missing yy-coordinate when x=1x = -1.

2. Solution Steps

Substitute x=1x = -1 into the equation y=3x7y = 3x - 7:
y=3(1)7y = 3(-1) - 7
y=37y = -3 - 7
y=10y = -10
Therefore, the ordered pair is (1,10)(-1, -10).

3. Final Answer

-10

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