15 number

What number is smaller (greater) by 15 than its half?

Correct answer:

a =  -30
b =  30

Step-by-step explanation:

a+15=a/2 0.5a=15 21a=15 a=30

a+15=a/2

a = -30


a = -30/1 = -30

a = -30

Our simple equation calculator calculates it.
b15=b/2 0.5b=15 21b=15 b=30

b-15=b/2

b = 30


b = 30/1 = 30

b = 30

Our simple equation calculator calculates it.



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