Hej Pomożecie Oblicz . 7x - 6y +  9x - x - 10y = -(-6y) - 2y + (-7x) - x = -10ab + 5b - 7b + 2ab - 1 = - 8m - 9n + 11m - m + 5n = 16a - 20b - 40a + 18b =

7x-6y+9x-x-10y=15x-16y -(-6y)-2y+(-7x)-x=4y-8x -10ab + 5b - 7b + 2ab - 1 = -8ab-2b-1 - 8m - 9n + 11m - m + 5n = 2m-4n 16a - 20b - 40a + 18b =-24a-2b  

7x-6y+9x-x-10y= 15x-16y -(-6y)-2y+(-7x)-x=4y-8x -10ab+5b-7b+2ab-1= -8ab-2b-1 -8m-9n+11m-m+5n=2m-4n 16a-20b-40a+18b=24a-2b