Answer:
8x+40
Step-by-step explanation:
8(x+5)
Distribute
8*x +8*5
8x+40
Answer:
the answer is ... wait this doesn't make sense. what is the question exactly asking you to do?
Step-by-step explanation:
What is the question again
Answer:
15
Step-by-step explanation:
let r represent red marbles then white = 2r + 5 and total is 20, thus
r + 2r + 5 = 20 ( subtract 5 from both sides )
3r = 15 ( divide both sides by 3 )
r = 5 ← number of red marbles
Thus number of white = 20 - 5 = 15
