pomocy plis a)7(2b-4)=
b)-5(-a+3c-4)=
c)(6a+15):3=
d)(-46-2:2=
e)8b+12:2=
f)45z+9:9=
g)4(4a-2)+14+2x:2
h)(16p-3:4+7(-1+2r)=