Answer:
When x = 3, use -3x -2
-3(3) - 2 = -9 - 2 = - 11
·1/5n becomes 4/20n
·Leave 3/4 alone
·7/10n becomes 14/20n
·Combine like terms: 14/20n + 4/20n = 18/20n
·Simplify 18/20 to 9/10
·Final Answer : 9/10 - 3/4
Hope this helps you out in future problems!
Answer:
81
Step-by-step explanation:
159 i don’t know for sure tho
