> 8th grade

1/7

Equations of 2 unknowns

Mix

Instructions:

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

-1 . x + 2 . y=2
-2 . x + 1 . y=-2
=
=
=
x=
y=
Correctness test
-1 . + 2 . =2
-2 . + 1 . =-2