Distributive property says a(b+c)=ab+ac so
4(3x+2)=4(3x)+4(2)=12x+8
then add
12x+8-2
12x-6
it could also be 6(2x-1)
factor 20b-16
find the greatest common factor of both
20=2 times 2 times 5
16=2 times 2 times 2 times 2
GCF=2 tiemes 2=4
20b-16
undistribute 4 from each (divide each by 4)
4(5b-4)
Answer:
Step-by-step explanation:
first your going to do the least common multiple which is 12 for both then your going to subtract because were trying to find out how many students did there work correctly. so, whatever you do to the denominator you do to the numerator so, its going to be 10/12 - 9/12= 1/12 is your answer.
5 pairs because 50% is half of 100%, and if 100% is 10 pairs, and half of 10 is 5, then there is 5 pairs
