Question

Rozwiąż równania:

3 i 1/3 x+8=4 i 2/5x-8

x/2 + x/4 + x/5 = x-1

Answer 1

10/3x - 22/5x = -8-8
50/15x - 66/15x = -16

-16/15x = -16 * -15/16

x = 15

10x/20 + 5x/20 + 4x/20 = x-1
19x/20 = x-1 / *20
19x = 20x -20
19x - 20x = -20
-x = -20
x=20
proszę ; ))