(1)若2x-8丨+丨y-7丨=0,求x+y的值.(2)若丨2x-3丨+丨3y-4丨=0,求2x+3.y

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(1)若2x-8丨+丨y-7丨=0,求x+y的值.(2)若丨2x-3丨+丨3y-4丨=0,求2x+3.y
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(1)若2x-8丨+丨y-7丨=0,求x+y的值.(2)若丨2x-3丨+丨3y-4丨=0,求2x+3.y
(1)若2x-8丨+丨y-7丨=0,求x+y的值.(2)若丨2x-3丨+丨3y-4丨=0,求2x+3.y

(1)若2x-8丨+丨y-7丨=0,求x+y的值.(2)若丨2x-3丨+丨3y-4丨=0,求2x+3.y