# Problem With Solving 2 Equations

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### #1 xavierklavier

xavierklavier

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Posted 24 April 2015 - 12:42 PM

Hi everyone

I want to solve an easy exercise with 2 unknown and 2 equations.

x+y=5

x*y=5

I try to solve it with the function in the 2D menu (it looks like beneath).

{  x+y=5   I

{  x*y=5    I x,y

It normally works, but now the calculator (Casio Classpad 300Plus) gives me the solution:

{x+y=5,x*y=5}.

So it does not solve the equations.

I own this calculator since more than 6 years and I never had this problem before.

Does somebody has some ideas how to solve the problem?

thank you

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### #2 ACLIM

ACLIM

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AFX. 2.0 CLASSPAD 330

Posted 29 April 2015 - 07:30 PM

solve your problem follows

solve({x+y=5,x*y=5},{x,y}

x=1.381966011

y=3.618033989

Classpad 330 Vr. 3.06

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