Rozwiąż równania : a) x+4/2 - 5 = -3 b)3x+2/4 + 5 = 2x+1/3 c)4-x/5 = 8-x/4
Rozwiąż równania :
a) x+4/2 - 5 = -3
b)3x+2/4 + 5 = 2x+1/3
c)4-x/5 = 8-x/4
a) x+4/2 - 5 = -3 //*2 2x+4-10=-6 2x=0//:2 x=0 b)3x+2/4 + 5 = 2x+1/3 //*12 36x+6+60=24x+4 12x=-62//:12 x=-5 i 1/6 c)4-x/5 = 8-x/4 //*20 80-4x=160-5x x=80
a. x+ 4/2 -5=-3 / *2 2x+4 - 20 = -6 2x= -6+20-4 2x = 10/:2 x= 5 b. 3x+2/4 + 5 = 2x+1/3 /*12 36x + 6 + 60 = 24x + 4 36x -24x = -6-60+4 12x = - 62 /12 x = -62/12 x = - 5 1/6 c. 4-x/5 = 8-x/4 / *20 80 - 4x = 160 - 5x -4x +5x = 160-80 x = 80