Casio fx-570ES - Simultaneous Equations

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Casio FX-570ES One Page Exercise:
SIMULTANEOUS EQUATIONS
>>> Solve the equations 752
=
+
yx and 123
−
=
−
yx simultaneously.
What To Do The Screen Display
First turn on the calculator.
W
Go to Mode, select “EQN” and then choose to solve the 2-unknown simultaneous equations.
w
5 1
Enter the coefficients and constant of the first equation.
2 p 5 p 7 p
Now enter the coefficients and constant of the second equation.
3 p z 1 p z 1 2 p
To find the solutions press “=” a few times.
p
p