brandon uses the steps below to solve the equation 15x +6 = 14x +5 using algebra tiles.
step1: add 14 negative x tiles to both sides
step2: add 5 negative unit tiles to both sides
step3: the solution is x = 1
which explains whether brandon is correct?

a) brandon is correct because he has the correct solution in step 3
b) brandon is correct because he forms zero pairs to isolate the variable by using the lowest coefficient each time
c) brandon is not correct because he should have performed step 2 before performing step 1
d) brandon is not correct because he should have added 6 negative unit tiles to isolate the variable in step 2

D. Brandon is not correct because he should have added 6 negative unit tiles to isolate the variable in step 2

Step-by-step explanation:

Key goal is to have x on one side while the other value to the right. By subtracting 14x on both sides, you would get x+6=5. You would finally subtract 6 on both sides, not 5, to get the x by itself, thus x=-1.

351°f

step-by-step explanation:

the total estimated nappy use.=10,500,000

step-by-step explanation:

given that on an average the average baby uses 3528 napkins.

in a particular year 2014, the number of births were 299697 in new south wales.

rounding off the number of births to the nearest hundred thousand we have

no of birtsh = 300000

also rounding off the average usage to nearst thousand we get

average use of a baby = 3500

hence total number of nappy estimated to be used = 3500x300000

= 10,500,000

answer is 10,500,000 nappies