Could someone explain these two pleaseP. I have no idea what to do.

1)   The first one, start by adding m to BOTH sides  then come back with whtat you have if you need more hgelp

 

2)   Multiply both sides out and simpleify the two sides seperately first.

 

remember that   

7-5(3-2x)

= 7+     -5(3-2x)

the minus sign belongs to the 5.

 

After you do the first bit come back with what you have done.