Question

Solve the problem pairs of linear equation 21x+47y=110 47x+21y=162

Answer 1

21x + 47y = 110 .......×47
47x + 21y = 162 ......×21

987x + 2.209y = 5.170
987x + 441y = 3.402
__________________ _
1.768y = 1.768
y = 1.768/1.768
y = 1

21x + 47y = 110
21x + 47(1) = 110
21x = 110 - 47
21x = 63
x = 63/21

Solve the problem pairs of linear equation is {63/21, 1}

Answer 2

This the answer for ur question