Question

решить уравнение 7x+3y=14 x=7 x=0

Answer 1

7х+3у=14

х=7; 7 * 7 + 3у = 14; 3у= 14-49; 3х = -35; х = - 11  2/3

х = 0; 7 * 0 + 3х = 14; х = 4  2/3