Odpowiedź :
a)
3x - 8 = 16
3x = 24
x = 8
b)
5 + x = ( 24 - x ) - ( 19 - 2x)
5 + x = x + 24 + x - 19 + 2x
5x = 29 - 19
x = 2
c)
1/2x - 1/4x = 7 - 1/3x
1/2x - 1/4x + 1/3x = 7
6/12x - 3/12x + 4/12x = 7
7/12x = 7 /:7/12
x = 12
a)
3x - 8 = 16
3x = 24
x = 8
b)
5 + x = ( 24 - x ) - ( 19 - 2x)
5 + x = x + 24 + x - 19 + 2x
5x = 29 - 19
x = 2
c)
1/2x - 1/4x = 7 - 1/3x
1/2x - 1/4x + 1/3x = 7
6/12x - 3/12x + 4/12x = 7
7/12x = 7 /:7/12
x = 12