Question 939461

{{{3x-7y+5(x+3y)-4(y-2x)}}}

{{{3x-7y+5*x+5*3y-4*y-4*(-2x)}}}

{{{3x-7y+5x+15y-4y+8x}}}

{{{3x+5x+8x+15y-7y-4y}}}

{{{16x+15y-11y}}}

{{{16x+4y}}}