Answer:
3 
Step-by-step explanation:
A simple question, but I decided to answer.
Good Luck!!
You need to do the ones in the parentheses first
Answer:
3y+7x+3
Step-by-step explanation:
3y+2x+5x-4+
=3y+7x+3
16.181818911918626382829229228282882828282.6272882
<span>64-40ab
=8(8-5ab)
....................................</span>