Comments | math_help: pre-algebra question.

norain21 in math_help

pre-algebra question.

Jan 22, 2009 12:41

1. 43(7 - 2x) + 34 = 50(x -4.1) + 744

( my attempt )

Comments 4

elengul January 22 2009, 21:38:48 UTC

You made a mistake going from line 2 to line 4 of you attempt (because I don't exactly understand what your symbols in line 3 mean). The error is on the left side of line 4. Allow me to rearrange line 2 to help you see this ...

301 - 86x + 34 = 50x - 205 + 744
301 + 34 - 86x = 50x + 539

Good?

norain21 January 22 2009, 21:58:45 UTC

Yes! Thankyou! I'm now able to get the right answer :)

elengul January 22 2009, 22:02:03 UTC

You're quite welcome! Best of luck!

just_you_wait January 22 2009, 22:00:17 UTC

You flipped a sign (went from +34 to -34).