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43 votes
43 votes
Solve each system of equationsy=-x + 16y=-x - 8

User Sutasu
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1 Answer

10 votes
10 votes

Solving the simultaneous equation using the substitution method,


\begin{gathered} y=x+16\text{ equation (1)} \\ y=x-8\text{ equation (2)} \end{gathered}

Substituting equation (2) into equation (1),

Replace y with x-8 in equation (1),


\begin{gathered} x-8=x+16 \\ x-x=16+0 \\ 0=16 \\ \text{Therefore, no solution.} \end{gathered}

Hence, the question has no solution.

User Eran Yogev
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3.3k points