Question

решите систему уравнений
5(х-5)-3у=4у-4
6х=3(у-8)+60

Answer 1

$5x - 7y - 21 = 0 \\ 6x - 3y - 36 = 0 \\ 5x - 7y - 21 = 0 \\ x = \frac{1}{2} y + 6 \\ 5( \frac{1}{2} y + 6) - 7y - 21 = 0 \\ y = 2 \\ x = 7$