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December 21, 2014

December 21, 2014

Posted by **aneme** on Tuesday, February 12, 2008 at 11:22pm.

9x+6y=3

3x-7y=-26

please show me an example of how to do it.

- algebra 1 -
**polo**, Tuesday, February 12, 2008 at 11:36pmwhat is the slope of the line perpendicular to y= 3x-7?

- algebra 1 -
**DrBob222**, Tuesday, February 12, 2008 at 11:40pmIf you have a question, go to the top of the page and click on Post a New question. Then type in your question and post it.

- algebra 1 -
- algebra 1 -
**DrBob222**, Tuesday, February 12, 2008 at 11:38pm9x+6y=3

3x-7y=-26

=============

Solve one equation for one of the variables in terms of the other; for example, solve equation 1 for y.**6y = 3-9x and**

y = (3-9x)/6 which I would then reduce to

y = (1-3x)/2

then substitute this y for y in equation 2.**3x -7*[(1-3x)/2] = -26**

3x -(7+21x)/2 = -26

You see that y has been eliminated. Continue and solve for x, then substitute this value into the other equation and solve for y. Finally, substitute both x and y into one of the equations to make sure those values satisfy the equation. Check my work.

- algebra 1 -
**aneme**, Tuesday, February 12, 2008 at 11:43pmthanks!:-)

- algebra 1 -

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