\[\begin{aligned}&y=-3\\&y=7x-10\end{aligned}\]

Available Methods
Substitution
Elimination
Matrix
1
Substitute y=3y=-3 into y=7x10y=7x-10.
3=7x10-3=7x-10

2
Solve for xx in 3=7x10-3=7x-10.
x=1x=1

3
Therefore,
x=1y=3\begin{aligned}&x=1\\&y=-3\end{aligned}

Done

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