Question

ПОМОГИТЕ ПОЖАЙЛУСТАААААААААА

Answer 1

$\left\{\begin{array}{l}4x-y=29\, |\cdot 2\\7x+2y=2\end{array}\right\; \oplus \; \left\{\begin{array}{l}15x=60\\2y=2-7x\end{array}\right\; \; \left\{\begin{array}{l}x=4\\2y=-26\end{array}\right\; \; \left\{\begin{array}{l}x=4\\y=-13\end{array}\right\\\\\\Otvet:\; \; (4\, ;\, -13\, )\; .$