Posted by **lillie** on Tuesday, September 22, 2009 at 7:58am.

i need help understanding linear equations. 7x-15y+9=0 please help.

- 10th grade algebra -
**drwls**, Tuesday, September 22, 2009 at 8:07am
Plugging in a value of x lets you compute y, or vice versa. It is the equation of a striaght line.

What are you supposed to do with the equation? Turn it into an equation for y?

- 10th grade algebra -
**Reen**, Tuesday, September 22, 2009 at 8:13am
try isolating for y

- 10th grade algebra -
**Anna**, Friday, September 25, 2009 at 3:32pm
(0,2) m= 4/5

- 10th grade algebra -
**Anonymous**, Friday, October 2, 2009 at 3:01pm
iol

- 10th grade algebra -
**ben**, Tuesday, October 6, 2009 at 10:14am
7x-15y+9=0

**Subtract 9 from both sides

7x-15y=-9

**Subtract 7x from both sides

-15y=-7x-9

**Divide both sides by -15

y=(7/15)x+(9/15) <--- equation isolate for y

- 10th grade algebra -
**taylor**, Monday, August 22, 2011 at 7:21pm
2+11b=8b+15

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