Question

what must be subtracted from 3x to get 5x+1​

Answer 1

Answer: $-2x-1$

Step-by-step explanation:

Let the number be y.

$=> 3x-y=5x+1\\=>-y=5x+1-3x\\=>-y=2x+1\\=>y=-(2x+1)=-2x-1$

Thanks!!

Answer 2

Answer:

let the number be y

according to question

3x-y=5x+1

-y=5x-3x+1

-y=2x+1

y=-(2x+1)

y=-2x-1