Odpowiedź :
a) x:5=x+2:3
3x=5x+10
2x=-10
x=-5
b) x-3:2=x-8:7
7x-21=2x-16
5x=5
x=1
3x=5x+10
2x=-10
x=-5
b) x-3:2=x-8:7
7x-21=2x-16
5x=5
x=1
a) x/5 = x+2/3 |*15
3x = 5x+10
-2x = 10
x = -5
b) x-3/2 = x-8/7 |*14
7x - 21 = 2x - 16
5x = 5
x = 1
3x = 5x+10
-2x = 10
x = -5
b) x-3/2 = x-8/7 |*14
7x - 21 = 2x - 16
5x = 5
x = 1