71 - (3x + 2x + x + x/2 + x/4) = 17
71- (6x + x/2 + x/4) = 17
Aducem la acelasi numitor toi termenii .
6x/1 = 24x/4
x/2 = 2x/4
Rezolvam ecuatia
71 - (24x/4 + 2x/4 + x/4) = 17
71 - 27x/4 = 17
27x/4 = 71-17
27x/4 = 54/1
Rezolvam proportia
27x * 1 = 4 * 54
27x = 216
x = 216 / 27
x = 8
