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OpenStudy (anonymous):
SOLVE BY ADDITION METHOD X+Y=4 2X+Y=5
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OpenStudy (anonymous):
CAN U PLEASE HELP ME OUT IM CONFUSED I DONT KNOW HOW TO DO THIS?
OpenStudy (anonymous):
OK I GUESS UR NOT HELPING ME
OpenStudy (anonymous):
multiply the first equation by -1=>-x-y=-4 now add the 2 equations:=>x=1 now substitute in any of the equations:=>y=3
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