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OpenStudy (anonymous):
elimination method x+8y=67 -x+3y=21
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OpenStudy (anonymous):
x = 3 y = 8
OpenStudy (anonymous):
add both equation , it will eliminate x 11y=88 y=8 substitute y= 8 in any of the equation and find out the value of x -x+3y=21 -x=21-24 x=3
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