Odpowiedź :
Odpowiedź:
a) 2(x+3)=12+x
2x+6 = 12+x /-x
x+6 = 12 /-6
x=6
b) 3(2-x)+2=3-½(x+1) /*2
6(2-X)+4 = 6-(x+1)
12-6x+4 = 6-x-1
16-6x = 5-x /+6x
16 = 5x+5 /-5
5x = 11 /:5
x = 11/5 = 2,25
Odpowiedź:
a) 2(x+3)=12+x
2x+6 = 12+x /-x
x+6 = 12 /-6
x=6
b) 3(2-x)+2=3-½(x+1) /*2
6(2-X)+4 = 6-(x+1)
12-6x+4 = 6-x-1
16-6x = 5-x /+6x
16 = 5x+5 /-5
5x = 11 /:5
x = 11/5 = 2,25