LUDZIE NA TERAZ POMOCY
oblicz:
– 7a – 4a + 4 =

4a – 7a + a – 3a =

9x + 3 – 10x + 6x =

–4a + 5 – 6a – 7 + 8a =

7x + 3y – 3x + 5y – 11x =

– 5a + 8 – 6b + 12a – 15 + 13b =

17x – 12 + 4 + 8y – 9x – x + 8 =

– 4a + 2b – 3c + b – 7a + 9b +8c =

4z – 5y + 3 – 7z + 13y =

- 7c + 2d + 4 – 8c – 5d + 7 =

8a – 4b + 7 + 3 – 15a + 17b =

7x – 3y + 2z – 6z + 8x – 4y + 6z =

- 6a + 2b – 3c – 2a + b – c – 7a =
błagam pomocyyy


Odpowiedź :

[tex]-7a - 4a + 4 = -11a + 4\\\\4a - 7a + a - 3a = -5a\\\\9x+3-10x+6x = 5x + 3\\\\-4a + 5 - 6a - 7 + 8a = -2a-2\\\\7x+3y-3x+5y-11x = -7x+8y\\\\-5a+8-6b+12a-15+13b = 7a+7b - 7\\\\17x-12+4+8y-9x-x+8 = 7x+8y[/tex]

[tex]-4a +2b-3c+b-7a+9b+8c = -11a+12b +5c\\\\4z-5y+3-7z+13y = 8y -3z + 3\\\\-7c+2d + 4 - 8c - 5d + 7 = -15c - 3d + 11\\\\8a - 4b + 7 + 3 - 15a + 17b = -7a + 13b + 10\\\\7x-3y+2z-6z+8x-4y+6z = 15x-7y+2z\\\\-6a+2b-3c-2a+b-c-7a = -15a +3b -4c[/tex]