2x - y - 4 = 0
3x + y - 9 = 0

what is the solution set of the given system?

a. {(6/5, 13/5)}
b. {(13/5, 6/5)}
c. {(5, 6)}
d. {(6, 5)}

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Can someone me with this problem . show your work .

Luke started a weight-loss program. the first week, he lost x pounds. the second week, he lost pounds less than times the pounds he lost the first week. the third week, he lost 1 pound more than of the pounds he lost the first week. liam started a weight-loss program when luke did. the first week, he lost 1 pound less than times the pounds luke lost the first week. the second week, he lost 4 pounds less than times the pounds luke lost the first week. the third week, he lost pound more than times the pounds luke lost the first week.