Odpowiedź :
a) 2x + 5 = 17/-5
2x = 12/:2
x = 6
b) 3x - 6 = 18 + 6 /+6
3x = 30/:3
x = 10
c) 4x - 6 = 34 /+6
4x = 40/:10
x = 10
a)2x-5=17/+5
2x=22/:2
x=11
b) 3x-6=18/+6
3x=24/:3
x=8
c) 4x-6=34/+6
4x=40:4
x=10
a) 2x + 5 = 17/-5
2x = 12/:2
x = 6
b) 3x - 6 = 18 + 6 /+6
3x = 30/:3
x = 10
c) 4x - 6 = 34 /+6
4x = 40/:10
x = 10
a)2x-5=17/+5
2x=22/:2
x=11
b) 3x-6=18/+6
3x=24/:3
x=8
c) 4x-6=34/+6
4x=40:4
x=10