Question

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

Answer 1

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