I wasn't in my Maths lesson today, but I got given the homework anyways.

can someone please help me?

the question is

**Make b the subject of the formula : p= 2a + 2b**

an explanation of how to get the answer would be very helpful - thanks in advance

Posted Mon 27th February, 2012 @ 17:15 by

Ammy
**p-2a=2b**

**p-2a/2=b**

**flip it around so it looks better**

**b=p-2a/2**

You slowly, step by step take all of b's freinds away until it's by itself. So sad. When you move a number from one side of the = sign to another, plus becomes minus, minus becomes plus, divide becomes multiply, multiply becomes divde, square becomes square root and square root becomes square :)

I hope the explanation is good :)

Answered Mon 27th February, 2012 @ 19:11 by

MeghnaEdited by

Meghna on Mon 27th February, 2012 @ 19:11

You just have to rearrange it so that b equals the rest of it. So the answer is

**b = p-2a/2 ( in fraction form)**

Answered Mon 27th February, 2012 @ 17:23 by

Shannon Tennant-Smith - Team GR
Answered Fri 2nd March, 2012 @ 20:13 by

Ammy