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Answer:
31 and 73
Step-by-step explanation:
Writing this is variable form,
x+y = 104
x-y = 42
If we use the process of elimination and add the system of equations together;
2x = 146
x = 73
Substituting that back in;
x - y = 42
(73) - y = 42
y = 31
Answer:
[tex]a=73 \text{ and } b=31[/tex]
Step-by-step explanation:
[tex]a+b=104 --- (1)\\a-b=42 ---(2)\\[/tex]
Add (1) and (2), we get
[tex]2a=104+42\\a=\dfrac{146}{2}\\=73[/tex]
[tex]73-b=42\\-b=42-73\\b=31[/tex]