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OpenStudy (anonymous):
solve the system by addition method: 2x-3y=-9 5x+2y=-13
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OpenStudy (anonymous):
Multiply first equation by 2 and second equation by 3. Then add the equations to get an equation only in x. Solve for x. Then substitute value of x in one of the equations to find the value of y.
OpenStudy (anonymous):
x=-3, y= 1 ?
OpenStudy (anonymous):
You can practice interactive problems like this on http://www.saab.org/mathdrills/lineq.cgi
OpenStudy (anonymous):
thks
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