Solve for X and Y

[Hamada-77]

hello
how can i solve this two equations with Hp prime ?
Need to solve for X and For Y .
see please attachment.
Thank you

[salvomic]

You can use the app Solve, then (in Symb) write the equations in E1 and E2; in Num give some guess tries for X and Y and press Solve:

X=9, Y=-4

Salvo

[Arno K]

Not to forget the Linear Solver App, you simply enter your 6 numbers and push Solve.
Arno

[salvomic]

(01-25-2018 10:20 AM)Arno K Wrote:  Not to forget the Linear Solver App, you simply enter your 6 numbers and push Solve.
Arno

Right, yes!

[DrD]

You could use a graphical approach, using the Advanced Graphing App. The two solutions show up nicely at the intersections of the two expressions:

Points (X,Y) = (4,9) and (9,-4)



[attachment=5592]

-Dale-

[Arno K]

(01-25-2018 10:48 AM)salvomic Wrote:  

(01-25-2018 10:20 AM)Arno K Wrote:  Not to forget the Linear Solver App, you simply enter your 6 numbers and push Solve.
Arno

Right, yes!

No, I was wrong, did not enlarge that pic, so I did not see that the second equation is quadratic.
Arno

[salvomic]

(01-25-2018 11:12 AM)Arno K Wrote:  No, I was wrong, did not enlarge that pic, so I did not see that the second equation is quadratic.
Arno

and I was wrong two times, then, replying too soon
ok, the second equation is not linear...

[SMaus]

solve({13*x+5*y=97,x^2+y^2=97},{x,y})