Question

4[1/3(x+20)] = (x-20) + 2/3(x+20) (krok po kroku)

Answer 1

4[1/3(x+20)] = (x-20) + 2/3(x+20)

4/3(x + 20) - 2/3(x + 20) = x - 20

2/3(x + 20) = x - 20                                         bo 4/3 - 2/3 = 2/3

2/3x + 40/3 = x - 20

2/3x - x = -40/3 - 60/3

-1/3x = -100/3

-x = -100

x = 100