If the tick marks are equally spaced on the number line above, what is the value of yA5 B6 C7 D8 E9

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If the tick marks are equally spaced on the number line above, what is the value of yA5 B6 C7 D8 E9
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If the tick marks are equally spaced on the number line above, what is the value of yA5 B6 C7 D8 E9
 If the tick marks are equally spaced on the number line above, what i


s the value of y



A5 B6 C7 D8 E9

If the tick marks are equally spaced on the number line above, what is the value of yA5 B6 C7 D8 E9
设3到x的距离是z,那么3到2x的距离是4z,(因为每一格的距离长度相等).
那么就有 x-3=z
2x-3=4z
算得 x=4.5,z=1.5
所以,y=x+1.5=4.5+1.5=6
选择B

根据题意:
2y=2x+3
2x=y+3
解得:y=6