# question

#### porterehd

##### New member
2.66 = 1.8b + 1.4 slove for b

A = kB + C
A-C = kB
(A-C)/k = B

#### porterehd

##### New member
i need the answer for b

#### Jomo

##### Elite Member
We do not give answers on this website. We help students solve their problems. I guess you failed to read the posting guidelines.

Just follow the pattern that I showed in my last post.

#### Subhotosh Khan

##### Super Moderator
Staff member
i need the answer for b
You have posted 5 different problems - without showing one line of original work. This is not the way to receive help at this forum.

Please show us what you have tried and exactly where you are stuck.

Please follow the rules of posting in this forum, as enunciated at:

#### eddy2017

##### Senior Member
A = kB + C
A-C = kB
(A-C)/k = B
2.66 =1.8b+1.4 ............................................................................... edited
I will tweak the equation just a little bit and then,

1.8b + 1.4=2.66 ( more comfortable to work with)
you have to try and get rid of the decimal and you do that by multiplying by 100 both sides
1.8b (100) + 1.4(100) =2.66(100)
that' ll give you whole numbers
180b+140=266 ( friendly numbers )
now let's clean up a little bit

180b + 140 - 140 = 266 -140
180b =126 ( you see that, how you can solve for b now dividing both sides by 180

then you get

b=7/10 which you can not be simplified any further.

Last edited by a moderator: