Homework Help: Algebra

Posted by Christi on Tuesday, November 13, 2007 at 8:13pm.

I have worked this and checked it and it does not come out true any one help me?

3x-5(3x-7)=2(x+9)+45
3x-15x-35=2x+18+45
-12x-35=2x+63
+35 +35
-12x=2x+98
-2x -2x
-10x=98
x=-98/10
x=-9 8/10
checking it i get 152 3/5 and 43 2/5
Help where did I go wrong?

Algebra - Kellie, Tuesday, November 13, 2007 at 8:15pm
I KNOW I KNOW! When you distribute -5 to -7 in the beginning its 35 not negative 35.
- Algebra - Christi, Tuesday, November 13, 2007 at 8:18pm
  Thanks.
Algebra - Christi, Tuesday, November 13, 2007 at 8:16pm
I figured it out I miss added two negatives.
- Algebra - Kellie, Tuesday, November 13, 2007 at 8:18pm
  You mean miss multiplied.

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