Respuesta :
Answer:
Sum: 23 + 11 = 34
Difference: 23 - 11 = 12
Step-by-step explanation:
x + y = 34
x - y = 12
x - y = 12
x = 12 + y
x + y = 34
12 + y + y = 34
12 + 2y = 34
2y = 22
y = 11
x + y = 34
x + 11 = 34
X = 23
Answer:
Sum: 23 + 11 = 34
Difference: 23 - 11 = 12
Step-by-step explanation:
x + y = 34
x - y = 12
x - y = 12
x = 12 + y
x + y = 34
12 + y + y = 34
12 + 2y = 34
2y = 22
y = 11
x + y = 34
x + 11 = 34
X = 23