Question

solve using the method of substitution x+y=7,x-y=3​

Answer 1

Step-by-step explanation:

x+y=7

x=7-y

x-y=3

7-y-y=3

7-3=2y

2y=4

y=4/2

y=2

x=7-y

x=7-2

x=5

Answer 2

Answer:

x+y=7

x=y-7

x-y=3

7-y-y=3

7-3=2y

2y=4

y=4/2

y=2

X=7-y

X=7-2

X=5