— 1. Решите уравнения: 1) (15x - 14x) -1683 = 23.10; 2)2832+(23x – 22x) = 38.100, - 3) 4823+ (23x – 22x)=60-90; 4)(78x - 77x) – 41.10 = 289.
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Ответ:
1) (15x-14x)-1683=23.10
15x-14x-1683=23.10
15x-14x=23.10+1683
x=1706.10
2) 2832+(23x-22x) = 38.100
2832 + 23x-22x= 38.100
23x-22x=38.100-2832
x=-2793,9
3) 4823+(23x-22x)=60-90
4823+23x-22x=60-90
23x-22x=60-90-4823
x=-4 853
4) (78x-77x) - 41.10=289
78x-77x - 41.10=289
78x-77x = 289+41.10
x=330,10
15х-14х=1706.10
х=1706.10
2) 2832+(23х-22х)=38.100
23х-22х=38.100-2832
х=-2793.9
3)23х-22х=60-90-4823
х=-4853
4) 78х-77х=289+41.10
х=330.1