Kittenfluff
Kittenfluff
28-08-2020
Mathematics
contestada
x+y=2 equal to x-y=8
Respuesta :
Аноним
Аноним
28-08-2020
Answer:
x = 5
y = - 3
Step-by-step explanation:
x + y = 2
x - y = 8
add
x + x + y - y = 2 + 8
2x = 10
x = 5
replace x
5 + y = 2
y = 2 - 5
y = - 3
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