Question

Make b the subject:

Answer 1

\[a = \frac{ 2 - 7b }{ b - 5 }\]

Answer 2

I've gotten ab + 7b = 7 so far

Answer 3

Do you mean "solve for the variable b"?

Answer 4

make b the subject. so b is on its own on one side of the equation.

Answer 5

Yeah

Answer 6

I don't think I've ever heard it phrased that way. :) If you don't mind my asking, what country do you live in? Also here are the first few steps.

Answer 7

Please forgive my handwriting, I just got a new tablet and I'm still adjusting to the settings.

Answer 8

ty, and UK

Answer 9

Multiply b - 5 to both sides.

Answer 10

ty, but where do i go from ab - 5a = 2 - 7b?

Answer 11

see the eqn. is in two variables, there can be any value of a , if you put b & vice -versa

Answer 12

if a=2 then value of b comes out of eqn.

Answer 13

so a and b can have infinite sol. not one solution

Answer 14

i need to rearange the equation to get b on its own for this

Answer 15

wait, nvm i've figured it out.

Answer 16

ok