Question

[8 3x-2y] = [8 1]
[x+3y 5] [4 5]

Answer 1

83x-2y=81
x-2y=81-83
x-2y=-2
x=-2(-¹)
x=2
x+3y5=45
x+3y=45-5
x+3y=40
x=40÷3
x=12,3333