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ROZWIĄŻ RÓWNANIA

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

2(x + 20) + 2x = 48

2(x + 2) = 3(x + 2) + x + 1

6x + 8 = 4x + 20

2(3x + 4) = -(-4 - 8)



Odpowiedź :

Odpowiedź:

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

15x - 10 = 4x + 2

15x - 4x = 2 + 10

11x = 12    /:11

x = 12/11 = 1 1/11

2(x + 20) + 2x = 48

2x + 40 + 2x = 48

4x = 48 - 40        /:4

x = 8/4 = 2

2(x + 2) = 3(x + 2) + x + 1

2x + 4 = 3x + 6 + x + 1

2x - 4x = 7 - 4    

-2x = 3      /:(-2)

x = -3/2 = -1 1/2

6x + 8 = 4x + 20

6x - 4x = 20 - 8

2x = 12     /:2

x = 6

2(3x + 4) = -(-4 - 8)

6x + 8 = 4 + 8

6x = 12 - 8      /:6

x = 4/6 = 2/3

Szczegółowe wyjaśnienie: