Question

10x+y=7 nsecito resultado ​

Answer 1

$\bf \colorbox{black} {\bf {\textcolor{blue}{tema = }{ \bf { \textcolor{orange}{matematicas = }{ \bf{ \textcolor{cyan}{respuesta = }}}}}}}$

$10x + y = 7 \\ \\ despejamos(y) \\ \\ y = 7 - 10x \\ \\ sustituimos \\ \\ 10x + y = 7 \\ \\ 10x + (7 - 10x) = 7 \\ \\ 10 + 7 - 10x = 7 \\ \\ 10x - 10x = 7 - 7 \\ \\ \bf \textcolor{green}{ \underbrace{0 = 0}}$

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