Odpowiedź :
a) x:9=16
9• x/9 = 9•16
x=9•16
x=144
b) 3•x-14=25
3x-14+14=25+14
3x=39
x=13
c) 7•x-2+4•x=42
11x-2=42
11x-2+2=42+2
11x=44
x=4
Licze na naj :)
9• x/9 = 9•16
x=9•16
x=144
b) 3•x-14=25
3x-14+14=25+14
3x=39
x=13
c) 7•x-2+4•x=42
11x-2=42
11x-2+2=42+2
11x=44
x=4
Licze na naj :)
Odpowiedź:
a) x : 9 = 16
x= 16×9
x= 144
b) 3 ⋅ x - 14 = 25
3x= 25+14
3x= 38
x=39÷3
x= 13
c) 7 ⋅ x − 2 + 4 ⋅ x = 42
11x-2=42
11x=42+2
11x=44
x=44÷11
x=4