by mohamed gamal abas (Eygpt - Monofia) (1 Submission)
Category: Math/Dates
Compatability: VB 6.0
Difficulty: Unknown Difficulty
Originally Published: Mon 30th August 2004
Date Added: Mon 8th February 2021
Rating: 
(1 Votes)
Solve two equations and two unknowns
VBcoders
Dim a As Single, b As Single, c As Single
Dim d As Single, e As Single, f As Single
Dim X As Single, Y As Single
Dim delta As Single, delta1 As Single, delta2 As Single
a = Val(txta.Text)
b = Val(txtb.Text)
c = Val(txtc.Text)
d = Val(txtd.Text)
e = Val(txte.Text)
f = Val(txtf.Text)
delta = (a * e) - (b * d)
delta1 = (c * e) - (b * f)
delta2 = (a * f) - (c * d)
If delta = 0 Then
MsgBox "no solve exist", vbInformation, "invalid"
Else
X = delta1 / delta
Y = delta2 / delta
txtx.Text = X
txty.Text = Y
End If
End Sub
