doprowadż do najprostszej postaci
1.(-2a+7)-(b-3a+7)=
2.(4k+5m)-(7+4k+m)=
3.(7c-2d+12)-(-4-9a+13b)=
4.(6k+8m+5)-(4m-5k+19)=
5.(-2+7)-(b-3a+7)=
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1. -2a + 7 - b + 3a + 7 = a - b + 14
2. 4k + 5m - 7 - 4k -m = 4m
3. 7c - 2d +12 +4+9a - 13 b = 7c -2d + 9a - 13 b +16
4. 6k +8m +5 - 4 m +5k - 19 = 11k - 4m - 14
5. -2 +7 -b +3a - 7 = - b + 3a - 2
Liczę na naj :)
-2a + 7 - b + 3a - 7 = 1a -b
2k+5m - 7-4k + m = -2k + 6m - 7
7c - 2d + 12 + 4 + 4 + 9a - 13b = 9a - 13b + 7c - 2d + 20