Two Equations Two Unknowns!
Three Equations Three Unknowns!

This solves Two Equations and Two Unknowns!
Enter the Numbers - Click the Button!

Enter => X Y =
Enter => X Y =



Y =
X =
This solves Three Equations and Three Unknowns!
Enter the Numbers - Click the Button!

Enter => X Y Z =
Enter => X Y Z =
Enter => X Y Z =



Z =
Y =
X =

Four Equations and Four Unknowns!

Enter => X Y Z K =
Enter => X Y Z K =
Enter => X Y Z K =
Enter => X Y Z K =



X =
Y =
Z =
K =


Example Finance Problem:
Mrs. Johnson would like to invest her savings = $20,500
in government Bonds paying 5.5%
and Stocks which are expected to pay 8%
If she would like to get an income from her
investment of $120 per month,
How much should she invest in Stocks
and how much should she invest in Bonds?

Let X = Amount to invest in Bonds
Let y = Amount to invest in Stocks
=> X + Y = 20500 = Total Amount Invested
Also => .055*X + .08*Y = 120*12 = 1440 = Yearly Income
Type these numbers into the Two Equations above!

X = $8,000 = Bonds
Y = $12,500 = Stocks