Question

please give me step by step ans please​

Answer 1

Answer:

a+b=55

a-b=5

then

a=30 and b=25

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Answer 2

Answer:

x+y = 55

x-y = 5

x = 5+y

5+y+y = 55

2y = 55-5

y = 50

y = 25

x = 5+25

x = 30

Answer =》X = 30 , Y = 25