Need with algebra homework! to a box that contained 50 pencils 10 out of which were red several more red pencils were added. now 50% of all pencils in this box are red. how many red pencils were added to the box?

25+25 =50 there are 25 red pencils

2(x+10）=50+x

x=30  

i believe the answer is letter c) 8

step-by-step explanation:

it is contrapositive

i could not see the question too well so check yourself again too . this is because i want you to get it correct.