Question

please find answers for me plz ​

Answer 1

Answer:

x+y=7×5-3×0

x-y=4×3-0×0

then,

x+y=35---------1

x-y=12---------2

sum of eq-1and eq-2

2x=47

or,x=23.5

or,y=35-23.5=11.5