Answer:
x = 2 and y = 1
Step-by-step explanation:
Given equations are :
3x+y=7 ....(1)
x+y=3 ....(2)
Subtract equation (1) and (2) we get :
3x+y-(x+y) = 7-3
3x+y-x-y = 4
3x-x = 4
2x = 4
x = 2
Now put the value of x in equation (2)
2+y=3
y=3-2
y = 1
Hence, the solution of the equations are x = 2 and y = 1.
Answer:
(3x+y) - (x+y) = 7 - 3
subtract equal quantities from both sides of the first equation.
