Magic number

The number 135 split to two addends so that one addend was 30 greater than 2/5 the addend.

Correct answer:

a =  60
b =  75

Step-by-step explanation:

a = 30 + 2/5 b

a = 30 + 2/5•b

a+b = 135
5a-2b = 150

a = 60
b = 75

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