Plissss pomocy Rozwiąż równanie Zad.2 Sprawdzi, która liczba spełnia równanie

Zad. 1 a) x + 7 = 22 x = 15 b) x - 5 = 11 x = 16 c) 2x = 16 | :2 x = 8 d) 3x + 1 = 10 3x = 9 | :3 x = 3 e) 2x + 3 = x - 5 x = -8 f) 4x - 7 = 1 4x = 8 | :4 x = 2 g) 3x + 4 = -2x - 1 5x = -5 | :5 x = -1 h) -4x + 3 = -x - 6 -3x = -9 | :(-3) x = 3 i) 2(x + 1) = 6 2x + 2 = 6 2x = 4 | :2 x = 2 j) 2(x - 1) = 8 2x - 2 = 8 2x = 10 | :2 x = 5 k) 3(x - 1) + 2 = 4 3x - 3 + 2 = 4 3x = 5 | :3 x = 5/3 l) 2(x - 3) - (3x - 1) = 5 2x - 6 - 3x + 1 = 5 -x = 10 x = -10 Zadanie 2. a) 3x + 4 = 7 3x = 3 x = 1 b) x - (2 - x) = 4 x - 2 + x = 4 2x = 6 x = 3 c) 3(x - 8) = 6x - 9 3x - 24 = 6x - 9 -3x =15 | :(-3) x = -5 ---> żadna z podanych