hello... just trying to look for help in the question below please

Question

the problem says. which expressions is equivalent to 6 + 7n + 4 + 8n? these are the options

a. 13n +12n b. 5(3n + 2) c. 5(3n + 10) d. 15n + 10

i keep getting answers that have nothing to do with these... so can somebody help me pleaseee.

Answer 1

You add like terms. 7n and 8 n are like terms so you can add them. 6 and 4 are also like terms, so you add them.

6 + 7n + 4 + 8n = 7n+8n + 6+4 = ________