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3х – 8y = -56 -3х – 56 = -8ysolve using system of equations

User Yawmoght
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\begin{gathered} 3x-8y=-56 \\ -3x+8y=56 \\ \text{those equations are equivalent, so we only need to solve one},\text{ } \\ 3x-8y=-56\rightarrow3x=-56+8y\rightarrow x=(-56+8y)/(3) \\ \text{let y=t} \\ S=\lbrace((-56+8t)/(3),t)^{}\colon t\in R\}^{} \end{gathered}

User Puffin
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