Teachers and parrents

Instructions:

Solve a set of two equations with two unknowns and find out values of unknown variables x and y.

Example

25 . x - 50 . y=-250
-50 . x - 25 . y=250
=
=
=
x=
y=
Correctness test
25 . - 50 . =-250
-50 . - 25 . =250

Solution

25 . x - 50 . y=-250
-50 . x - 25 . y=250
x=-6
y=2

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