Respuesta :
Answer:
a + b = 63
a - b = 12
So, a - b = 12 which can also be written as a = b + 12
Then use substitution and plug in (b + 12) for a in the first equation
(b+12) + b =63
-12 -12
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2b = 51 so b=25.5
Now, you know b which can be used to find a
63- 25.5= 37.5
So, a = 37.5 and b = 25.5
Answer:
25.5 and 37.5
Step-by-step explanation:
37.5-12=25.5
25.5+37.5=63
