Question

Pomocy pełne rozwiązania jak najszybciej

Answer 1

Odpowiedź:

5(x - 2) - 3(1 - 2x) = 4 - (x + 2)

5x - 10 - 3 + 6x = 4 - x - 2

11x - 13 = 2 - x

12 x = 15

x = 5/4

x/3 - 2 = 2x - x+3/6

2x - 12 = 12x - (x + 3)

2x - 12 = 12x - x - 3

2x - 12 = 11x - 3

2x - 11x = -3 + 12

-9x = 9

x = -1

3/5x - 0,4 = 2(0,75 - 1/5x) + 0,1

2/5x - 2/5 = 2(3/4 - 1/5x) + 1/10

3/5x - 2/5 = 3/2 - 2/5x + 1/10

3/5x - 2/5 = 8/5 - 2/5x

3x - 2 = 8 - 2x

5x = 10

x = 2

1/3(x2 + x) + 2/3 = 2(2/3 - 2x) + 11 + 1/3x2

1/3x2 + 1/3x + 2/3 = 4/3 - 4x + 11 + 1/3x2

1/3x + 2/3 = 37/3 - 4x

x + 2 = 37 - 12x

x + 12x = 37 - 2

13x = 35

x = 35/13