−6−0,4a=0.
-0,4а=0+6
-0,4а=6
а=-15
−9+y/−13=0
-9+у=-13
у=-13+9
у=-4
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−6−0,4a=0.
-0,4а=0+6
-0,4а=6
а=-15
−9+y/−13=0
-9+у=-13
у=-13+9
у=-4