5. Вычислите значение выражения наиболее удобным способом: 1)- 0,7+0,6-(-1); бом: 6 13 6 13 2 2) (--)(-70). 35 14

1) \(-\frac{6}{13} ⋅ 0,7 + 0,6 ⋅ (-\frac{6}{13}) = -\frac{6}{13} ⋅ 0,7 - \frac{6}{13} ⋅ 0,6 = -\frac{6}{13} ⋅ (0,7 + 0,6) = -\frac{6}{13} ⋅ 1,3 = -\frac{6}{13} ⋅ \frac{13}{10} = -\frac{6}{10} = -0,6\)

2) \((\frac{2}{35} - \frac{3}{14}) ⋅ (-70) = \frac{2}{35} ⋅ (-70) - \frac{3}{14} ⋅ (-70) = \frac{2}{35} ⋅ (-70) + \frac{3}{14} ⋅ 70 = 2 ⋅ (-2) + 3 ⋅ 5 = -4 + 15 = 11\)