Decide which variable to isolate then substitute for this variable and solve the system
y=x-5, x+y=9
+37095 One variable 'y is already isolated as y =x-5 sub this value of y into the second equation to find 'x'
x + y = 9
x + (x-5) = 9
2x -5 = 9
2x = 14
x=7 Now that you have x : y= x-5 = 7-5 = 2 x,y = 7,2
