Question

1,4+(-y-7)=-8 плизз помогите

Answer 1

1,4+(-y-7)=-8

1,4-у-7=-8

-у=-8+7-1,4

-у=-2,4

у=2,4

Answer 2

1, 4+(-у-7)=-8

1, 4-у-7=-8

у=1, 4+1

у=2, 4