Math Is Fun Forum

sarah931

Guest

This will probably be really easy.. [Solving Equations with Brackets]

You've got to forgive me, this is probably extremely easy for you all, but my mind has went completely blank. Could anyone solve the following equation, then try to explain to me how they done it? I'm only twelve, so if you would be so kind as to kind of dumb it down a little?

Here is the equation:-

Find 'x'
1-2(2x+1) = 1-(x-1)

Thank you very much

Dragonshade

Member

Registered: 2008-01-16

Posts: 147

Re: This will probably be really easy.. [Solving Equations with Brackets]

1-2(2x+1)=1-(x-1)
1-(2*2x+2*1)=1-x+1
1-(4x+2)=(1+1)-x
1-4x-2=2-x
(1-2)-4x=2-x
-1-4x=2-x
(-1-2)=(4x-x)
-3=3x
x=-1

Last edited by Dragonshade (2008-11-25 07:40:57)

sarah931

Guest

Re: This will probably be really easy.. [Solving Equations with Brackets]

Thank you so much