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Algebra 2ChallengeSystems of Equations

Systems of Equations · Challenge problem

For which value of kk does the system have NO solution, and what is yy when k=11k = 11?

{4x+5y=28x+ky=5\begin{cases} 4 x + 5 y = 2 \\ 8 x + ky = 5 \end{cases}