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Rozwiąż równania
2x+6=4x-4

2(x-3) -3(x+1)=x-13​


Odpowiedź :

1)

2x + 6 = 4x - 4

2x - 4x = - 4 - 6

- 2x = - 10 / : (-2)

x = 5

2)

2(x - 3) - 3(x + 1) = x - 13

2x - 6 - 3x - 3 = x - 13

2x - 3x - x = -13 + 6 + 3

- 2x = - 4 / : (-2)

x = 2

2x + 6 = 4x - 4   // -2x
6 = 2x -4   // +4
10 = 2x  // :2
5 = x


2(x-3) -3(x+1)=x-13​
2x - 6 - 3x - 3 = x - 13

-x - 9 = x - 13  // +x

-9 = 2x - 13  // +13

4 = 2x  // :2

2 = x