Question

When you solve an equation, how do you know when to add and when to subtract? You may include an example if you need to

Answer 1

4x-2=0
You add 2 to both sides because it's negative
4x=2

Answer 2

thanks! :)

Answer 3

you add or subtract considering the possibility that either of variables is eliminated
suppose x + y =3
and 2x-y =0

here if you add you get 3x =3 n x=1
but if you subtract you get 2y-x= 3
depends on how u want it to be solved