What must be subtracted from 3x-2y to get 2x+5y.
Given that: What must be subtracted from 3x-2y to get 2x+5y.
That means, subtracting 2x+5y from 3x-2y.
=3x-2y-(2x+5y)
=3x-2y-2x-5y=3x-2x-2y-5y=x-7y
Therefore, x-7y must be subtracted from 3x-2y to get 2x+5y.