Question

prove for that any value of x which is the domain the value of the expression does not depend on x
`((3x+5)/2x-1)+((7x+3)/1-2x))\\`

Answer 1

Explanation:

`(3x+5)/(2x-1) +(7x+3)/(1-2x)=(3x+5)/(2x-1)-(7x+3)/(2x-1) =(-4x+2)/(2x-1)=-2.`

this experssion does not depend on x, then for its domain: x∈(-∞;+∞).