What is the greatest common factor of 5 and 21?

Step-by-step explanation:

5,10,15,20,25,30,35,40,45,50,55,60,65,70,75,80,85,90,95,100,105

21,42,63,84,105

(the common factor is 105/105

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: