Odpowiedź :
a) 2(x-3) + 4 = 4x + 6
2x - 6 + 4 = 4x + 6
2x - 4x = 6 + 6 - 4
-2x = 8
x = -4
b) 42 - 3(3x - 5) = 5x + 4
42 - 9x + 15 = 5 + 4
-9x = 9 - 15 - 42
-9x = -48
x = 5 3/9 = 5 1/3
Liczę na naj!
a) 2(x-3) + 4 = 4x + 6
2x - 6 + 4 = 4x + 6
2x - 4x = 6 + 6 - 4
-2x = 8
x = -4
b) 42 - 3(3x - 5) = 5x + 4
42 - 9x + 15 = 5 + 4
-9x = 9 - 15 - 42
-9x = -48
x = 5 3/9 = 5 1/3
Liczę na naj!