Respuesta :
Answer:
y = 15
x = 43
Step-by-step explanation:
x + y = 48
x - 2y = 3
3y = 45
y = 15
x + y = 48
x + 15 = 48
x = 43
Solve for the first variable in one of the equations, then substitute the result into the other equation.
x= 93
y= -45
x= 93
y= -45