Mathematics, 03.08.2020 14:01 wendhycardenas2019

Find the ordered pair $(s, t)$ that satisfieFor a certain value of $k,$ the system \begin{align} 3a + 4b &= 7,\\ 6a + 4b &= k- 4b \end{align}has infinitely many solutions $(a, b).$ What is $k$?s the system \begin{align} \dfrac{s}{2} + 5t &= 3,\\ 3t - 6s &= 9. \end{align}

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Find the ordered pair $(s, t)$ that satisfieFor a certain value of $k,$ the system \begin{align*} 3a...