Question

Select each expression that is equivalent to 3n+6 select all that apply. Explan.

A. 3n+6
B.3n+18
C. 2n+2+n+4
D. 2(n+6)+(n+6)
E. 2(n+6)+n

Answer 1

A, C. A is obviously correct because it’s the e same thing and C you combine like terms (2n+n=3n,2+4=6,=3n+6) it’s not B because it’s not 18, it’s not D because you’d get 3n+18 and it’s not E because you’d get 3n+12, meaning the only correct answers are A and C