Which of the following must be true? If |n| = -45 then n = -45 and n = 45
If |a| = 36 then a = 36 only
If |z| = 25 then z = 25 and z = -25
If |t| = 26 then t = -26 only
I don't know yet

idk

step-by-step explanation:

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: