n < 0, is another way to say "n is negative", so let's check
Let one number be x.
Let the other number be y.
x + y = 49
x - y = 7
Subtracting both equations,
2y = 49 - 7 = 42
--- y = 21
--- x = 21 + 7 = 28
Hence the two numbers are 21 and 28.
Fifty nine and eighty three thousandths
Answer:
M e oque eu quero realmente te falar sobre a porta para o thanks