Posted by **Rich** on Thursday, May 27, 2010 at 2:02pm.

Hi, how can I solve this equation using algebra? y= 9x+50, many thanks

- algebra -
**drwls**, Thursday, May 27, 2010 at 2:27pm
If you want an equation for x in terms of y, subtract 50 from both sides and then divide both sides by 9.

That is not reaaly "solving" for x; you are just rearranging an equation. To get a numerical value for x (and y), you need a second independent equation.

- algebra -
**Rich**, Thursday, May 27, 2010 at 4:14pm
ok thanks, I also have to solve y=9x+100 as part of the question, is this what you meant by a second independent equation?

- algebra -
**Anonymous**, Wednesday, January 30, 2013 at 10:18pm
Hirxbo

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