Odpowiedź :
Odpowiedź:
5x - 0,25x = x(5 - 0,25) = x * 4,75 = 4,75x
0,53x - x = x(0,53 - 1) = - 0,47x
7x - 15x + 8x - x = 15x - 16x = - x
2 1/3a - 3a = a( 2 1/3 - 3) = a( 2 1/3 - 2 3/3) = - 1/3a
2,5x - 0,7x + 0,4x = 2,9x - 0,7x = 2,2x
2x * 1/34 = x * 1/17 = 1/17x
2/5 * 10x = 2 * 2x = 4x
Odpowiedź:
5x - 0,25x = x(5 - 0,25) = x * 4,75 = 4,75x 0,53x - x = x(0,53 - 1) = - 0,47x %3D 7x - 15x + 8x - X = 15x - 16x = - x %3D 2 1/3a - 3a = a( 2 1/3 - 3) = a( 2 1/3 - 2 3/3) = - %3D 1/3a 2,5x - 0,7x + 0,4x = 2,9x - 0,7x = 2,2x 2x * 1/34 = x * 1/17 = 1/17x %3D 2/5 * 10x = 2 * 2x = 4x