Respuesta :
this is how it is done.
=5+20 + 10 - 5z
=5z -5z + 20+10
=30
=5+20 + 10 - 5z
=5z -5z + 20+10
=30
You have to expand the brackets by multiplying what is in forn of the brackets by everything inside them i.e.
5z+20+10-5z
Then you combine like terms:
30
Hope this helps :)
5z+20+10-5z
Then you combine like terms:
30
Hope this helps :)