Question

what must be subtracted from 4x to obtain 2x​

Answer 1

Answer: Let the number to be subtracted be Y,

             Therefore,

                                4x - Y = 2x

                                -Y = 2x - 4x

                                -Y = -2x

             Therefore,

                                Y = 2x

Therefore, 2x should be subtracted from 4x to obtain the difference as 2x.

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Answer 2

Step-by-step explanation:

Let y is subtracted

so, 4x - y = 2x

-y = 2x -4x

-y = -2x

y = 2x

Answer is 2x