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15-06-2019
Mathematics

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When x=2 and y=4, what is the value of 7x-y?

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uchechukwueigwe uchechukwueigwe

15-06-2019

Answer:

the value of 7x-y is -14.

Step-by-step explanation:

When x=2 and y=4,

To find the value of 7x - y when x =2, y = 4, this means when ever you see x, put 2 in replacement, y, put 4 respectively.

7x - y = 7(2 - 4)

14 - 28

= -14.

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