Answer:
x = 3, y = 9
Step-by-step explanation:
The sum of two numbers is twelve. x+y = 12
The total of three times the smaller and twice the larger is twenty-seven.
3x + 2y = 27
x + y = 12
3x + 2y = 27
We can use substitution. x + y = 12 , so y = 12 - x
3x + 2(12 - x) = 27
3x + 24 - 2x = 27
x = 27 - 24 = 3
x = 3
x + y = 12
3 + y = 12
y = 12 - 3 = 9
y = 9