Question 1092050

5x-{x-[4+(3x-2y)-(5-x+y)]-2y+1}

5x-{x-[4+3x-2y-5+x-y]-2y+1}

5x-{x-[4x-3y-1]-2y+1}

5x-{x-4x+3y+1-2y+1}

5x-{-3x+y+2}

5x+3x-y-2

8x-y-2