Ответ:
8a-5+9a+2=17a-3
8a-5-9a-2=-a-7
12-5c-14-6c=-2-11c
12-5c+14+6c=26+c
y°+by-7+y°-by-2=2y°-9
y°+by-7-y°+by+2=2by-5
5a-0.7a?-2az+0.7a?+3az=5a+az
5a-0.7a?-2az-0.7a?-3az=5a-1.4a?-5az
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Ответ:
8a-5+9a+2=17a-3
8a-5-9a-2=-a-7
12-5c-14-6c=-2-11c
12-5c+14+6c=26+c
y°+by-7+y°-by-2=2y°-9
y°+by-7-y°+by+2=2by-5
5a-0.7a?-2az+0.7a?+3az=5a+az
5a-0.7a?-2az-0.7a?-3az=5a-1.4a?-5az