Автор - pototskaya1967

найдите корень уравнения:9b+6b-0.15=6.15;17x-x+5x-1.9=17;1.7x+88.42=94.2

Ответ

Автор - lerik2016
1) 9b+6b-0.15=6.15
15b=6.15+0.15
15b=6.3
b=0.42
2) 17x-x+5x-1.9=17
21x=17+1.9
21x=18.9
x=0.9
3) 1.7x+88.42=94.2
1.7x=94.2-88.42
1.7x=5.78
x=3.4

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