Respuesta :

dashboi007
5 + 10 (2n + 7)
=5 + 20n + 70
=75 + 20n

U first do the brackets
10 x 2n = 20n
10 x 7 = 70

then u simplify any like variables left

5 + 20n + 70
5 and 70 are like, so add them too
75 + 20n

and thrs nothing left