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D. none of the above

Step-by-step explanation:

we have ,

using exponential formulaes....

now first option is x^(-4/2)=x^(-2)

nd, 2nd option is x^(-4)

and 3rd option is (-) x^(1/4)

none of em is matching!

so D is correct option!

✌️:)

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:

45

step-by-step explanation: