\(\Leftrightarrow\left(x+5,y-3\right)\in\left\{\left(1;17\right);\left(17;1\right);\left(-1;-17\right);\left(-17;-1\right)\right\}\)
hay \(\left(x,y\right)\in\left\{\left(-4;20\right);\left(12;4\right);\left(-6;-14\right);\left(-22;2\right)\right\}\)