if the answer comes out as an expression of numbers how to just make it be expressed in calculated single value?

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so my problem is this: as you can see above, the answer has come out not as a single number but an expression with many numbers.

So if I want to see the calculated result of this weird long expression, I have to copy & paste to the command line myself and press enter.

Is there some kind of code that will do this job for me? (perhaps something like 'value()' or etc.)

(FYI, this kind of long expression came out when I used 'solve()' function.)

Answer 1

[Andrei Bobrov]

Please read about vpa .

doc vpa

[chul hyun kwag]

thank you!

Answer 2

[Azzi Abdelmalek]

double(a)