Answer:
5n+5
Step-by-step explanation:
5(n+3)-10
5n+15-10
5n+5
Try to get the u’s on one side so for this to happen, you would subtract the four from both sides.
u - 4u = 7 - 4
combine like terms
-3u = 3
divide by -3
u = -1
You want to divide 45 by 5.
45/5= 9
She used 9 yards of yarn for her knitting project.
I hope this helps!
~kaikers
It’s 15 for #16 and then for #18 it would be 55 then for 20 it would be 6