Wednesday

July 23, 2014

July 23, 2014

Posted by **^^^^kesha** on Saturday, June 9, 2012 at 10:08am.

so 3a+6=4a I added 3a to 4a/ =7a

and answer was 1(answer is 6) i just dont understand how and why we subtract 3a from 4a instead of adding. please help me

- algebra -
**MathMate**, Saturday, June 9, 2012 at 11:26amYou have got:

3a+6=4a

but we know that

3a =3a

So subtract one equation from the second,

3a+6-3a = 4a-3a

which gives

6 = a

**Related Questions**

Math, Please Help! - Ned divided a given number by 3 and then added 2. If he ...

8th Grade Algebra: Answer Check #2 - Add or Subtract (Radicals) { this means ...

Algebra II - I have some questions on my assignment, if you dont mind could you ...

algebra equation solving - ((y+2)/(y^2-49))subtract ((y)/(y^2+6y-7)) subtract ...

Algebra 1 - REINY, Thank you for your answer and the answer is obviously correct...

algebra - Multiply -5/9 * (6/5) Please show me in steps I understand better this...

Algebra - Can someone verify if my answers are correct? Solve. 1/x+6-1/x-6 My ...

Algebra - Can someone check my algebra answers and help me with the problems I ...

Math - The problem to solve is: (x+20)(x-12)(x+4)>0 but I can't figure out ...

Algebra 2 - I know it's easy, but I totally just blanked out on how to divide ...