Wpisz kolejne numery w odpowiednie miejsca.
a) 3x + 5 = 17
3x = 12 3x + 5 − 5 = 17 − 5 x = 4
........ .............. ...............
b) 5y − 7 = 2 + 4y
5y = 9 + 4y y = 9 5y − 4y = 9 + 4y − 4y 5y − 7 + 7 = 2 + 4y + 7
............. ...... ...................... .......................
c) 4t + 6 = 6t − 8
t = 7 4t + 6 − 6 = 6t − 8 − 6 −2t = −14 4t = 6t − 14
....... ........................... .............. ...............
4t − 6t = 6t − 14 − 6t
........................
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3x = 12 3x + 5 − 5 = 17 − 5 x = 4
....2.... ........1...... ........3.......
b) 5y − 7 = 2 + 4y
5y = 9 + 4y y = 9 5y − 4y = 9 + 4y − 4y 5y − 7 + 7 = 2 + 4y + 7
......3....... ....4.. .........2............. .........1..............
c) 4t + 6 = 6t − 8
t = 7 4t + 6 − 6 = 6t − 8 − 6 −2t = −14 4t = 6t − 14
....5... ..............1............. .......4....... ......3.........
4t − 6t = 6t − 14 − 6t
..............2..........
Chodzi tu zapewne o kolejnośc wykonywania dzialań tak ?
3x = 12 3x + 5 − 5 = 17 − 5 x = 4
....2.... .........1..... ...3............
b) 5y − 7 = 2 + 4y
5y = 9 + 4y y = 9 5y − 4y = 9 + 4y − 4y 5y − 7 + 7 = 2 + 4y + 7
........3..... ....4.. ..........2............ .........1..............
c) 4t + 6 = 6t − 8
t = 7 4t + 6 − 6 = 6t − 8 − 6 −2t = −14 4t = 6t − 14
...5.... .............1.............. .....4......... ...3............
4t − 6t = 6t − 14 − 6t
.........2...............