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1.1 1/2y + 16 = 19 y = 2.4 2/5y - 17 = 13 y=

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1. Step1: 圖片參考:http://www.mathway.com/math_image.aspx?p=SMB02FSMB033SMB102SMB02fSMB03*y+16SMB0119y?p=110?p=42 (我幫你轉左做假分數) Step2: 圖片參考:http://www.mathway.com/math_image.aspx?p=19y-SMB02FSMB033SMB102SMB02fSMB03*ySMB0116?p=107?p=42 Step3: 圖片參考:http://www.mathway.com/math_image.aspx?p=SMB02FSMB0335SMB102SMB02fSMB03ySMB0116?p=69?p=42 Step4: 圖片參考:http://www.mathway.com/math_image.aspx?p=ySMB0116%28SMB02FSMB032SMB1035SMB02fSMB03%29?p=87?p=42 Step5: 圖片參考:http://www.mathway.com/math_image.aspx?p=ySMB01SMB02FSMB0332SMB1035SMB02fSMB03?p=49?p=42 2. Step1: 圖片參考:http://www.mathway.com/math_image.aspx?p=SMB02FSMB0322SMB105SMB02fSMB03y-17SMB0113y?p=108?p=42 (又是轉了做假分數) Step2: 圖片參考:http://www.mathway.com/math_image.aspx?p=SMB02FSMB0322SMB105SMB02fSMB03y-13ySMB0117?p=108?p=42 Step3: 圖片參考:http://www.mathway.com/math_image.aspx?p=-SMB02FSMB0343SMB105SMB02fSMB03*ySMB0117?p=87?p=42 Step4: 圖片參考:http://www.mathway.com/math_image.aspx?p=ySMB01-SMB02FSMB0385SMB1043SMB02fSMB03?p=57?p=42

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