Question

Bill and Ron build towers using blocks. The expression 4b + 2 represents the number of blocks Bill uses. The expression 8b – 5 represents the number of blocks Ron uses.

Complete the expression to represent the total number of blocks Bill and Ron use.

Answer 1

Hi,
are you ready to help me solve it?

Answer 2

4b+8b-5+2

Answer 3

yea i guess

Answer 4

I think

Answer 5

thats how it really look

Answer 6

^

Answer 7

so do 8b+4b and 5+2

Answer 8

12b - 7

Answer 9

i think the answer is 12b-3

Answer 10

@Michele_Laino

Answer 11

Your answer is correct!
you did it.

Answer 12

I think it is 12b-7 am I right?

Answer 13

wait who?

Answer 14

@alivejeremy is correct.

Answer 15

ok

Answer 16

hint:
here we have to do this computation:
\[\left( {4b + 2} \right) + \left( {8b - 5} \right)\]
which can be rewritten as below:
\[\begin{gathered}
\left( {4b + 2} \right) + \left( {8b - 5} \right) = \hfill \\
\hfill \\
= \left( {4b + 8b} \right) + \left( {2 - 5} \right) = ...? \hfill \\
\end{gathered} \]

Answer 17

lol

Answer 18

^_^

Answer 19

so, I confirm your answer @alivejeremy

Answer 20

do i get a medal^_^

Answer 21

Sure, for your correct answer.
I suggest you take a look at what @Michele_Laino did above and try to understand it. You will need to the same thing so many times in the future.