Posted by **sherri r** on Monday, January 19, 2009 at 6:50pm.

can someone explain step by step to do math problems for to solve the system ill use an example 7x3y=-2 -7x-7x=14

- math -
**Reiny**, Monday, January 19, 2009 at 7:08pm
correct the typo in 7x3y=-2

type each equation in a new line, so we tell where one ends and the next one begins.

- math -
**sherri r**, Monday, January 19, 2009 at 7:52pm
7x3y=-2

-7x7x=14

- math -
**Reiny**, Monday, January 19, 2009 at 8:32pm
this is worse than before, now I have to read it as

21xy = -2

-49x^2 = 14

it can't be that, since the second equation clearly has no real solution.

I have a feeling you meant to type

7x + 3y = -2

-7x + 7y = 14

but until you clarify the equation, there is no point in working it out.

- math -
**sherri r**, Monday, January 19, 2009 at 10:35pm
7x + 3y = -2

-7x + 7y = 14

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