Question

solve the method by using substitution method x+y=6,x-y=2​

Answer 1

Answer:

x+y=6

x=6-y

x-y=2

(6-y)-y=2

6-2y=2

6-2=2y

4=2y

y=4/2

y=2

x=6-y

x=6-2

x=4