\[\boxed{\text{1065.}\text{\ }еуроки - ответы\ на\ пятёрку}\]
\[\textbf{а)}\ x + y = 5 \Longrightarrow y = 5 - x\]
\[x\] | \[5\] | \[4\] |
---|---|---|
\[y\] | \[0\] | \[1\] |
\[\textbf{б)}\ y - 4x = 0 \Longrightarrow y = 4x\]
\[x\] | \[0\] | \[4\] |
---|---|---|
\[y\] | \[0\] | \[1\] |
\[\textbf{в)}\ 1,6x = 4,8 \Longrightarrow x = 3\]
\[\textbf{г)}\ 0,5y = 1,5 \Longrightarrow y = 3\]