Odpowiedź:
3 (2x - 5) = 6x - 10
2 (10 + 4x) =20 + 8x
9x (3 + x) = 27x + 9x2
5 (2y + 6 - 2x) = 10y + 30 - 10x
7 (-2x + 4) = - 14x + 28
2 (3x + 4) =6x × 8
9 (4 - 7x) = 36 - 63x
4(6x - 0,5 - 9y) = 24x - 2 - 36y
3 (8x + 5y - 4) =24 x + 15y - 12
-3 (5x - 7) = -15x - 21
-7 (2y - 5) = -14y + 35
(2x - 5) · 5 = 5 (2x - 5) = 10x -25
(5x + 3) · 8 = 40x + 24
(6x - 4) · 3x =18x2 - 12x
(3x - 2) · 9x = 27x2 - 18x
(2x + 6) · 10 = 20x +60
(4 - 7x) · 2 = 8 - 14x