X+ 3y = 7 x - 3y = 1 solve the system of equations. a) x = 4, y = 1 b) x = 1, y = 4 c) x = - 2 3 , y = 3 d) x = 3, y = - 2 3

X + 3y = 7 
x - 3y = 1

x + 3y = 7
   - 3y    -3y

x = 7 - 3y

x - 3y = 1
7 - 3y - 3y = 1
7 -6y = 1
-7         -7

-6y = -6
y = 1

Now solve for x

X + 3y = 7
x + 3 = 7
x = 4

Now we have our values:-
x = 4 and y = 1

 A) x = 4, y = 1