Вправа 1052 алгебра Бевз гдз 7 клас

№ 1052
a) $(2 ; 1)$ $$
\left\{\begin{array}{l}
x+y=3 \\
x-y=1
\end{array}\right.
$$ б) $(-3 ; 2)$ $$
\left\{\begin{array}{l}
x+y=-1 \\
x-y=-5
\end{array}\right.
$$ в) $(5 ; 0)$ $$
\left\{\begin{array}{l}
x+y=5 \\
x-y=5
\end{array}\right.
$$ $$
\begin{aligned}
& \text { г) }(0 ;-4) \\
& \left\{\begin{array}{c}
x+y=-4 \\
x-y=4
\end{array}\right.
\end{aligned}
$$