Let x be an element of nonempty set A, and suppose x≠∅. Select whether each of the following statements are necessarily true or false. A statement that is not necessarily true should be marked as false. (a) A⊊A (b) ∅∈∅ (c) ∅⊆{x} (d) A−{x}⊂A

after simplifying it i got: -36.25 as my answer. hope that !

fa tha first one you gonna add y to both sides

it look like this

x-y+y=6+y

x=y+6

therefore your answer is

x =y+6

fa tha second one

you gonna flip tha equation

it gonna look like x-4y=y

then add 4 to both sides

it gonna look like tha

x-4 +4 =y +4

so therefore tha answer is x=y+4

step-by-step explanation: