Question

помогите решить уравнение- 9,88:(6,7-х)=2,6

Answer 1

$- \frac{245}{25} \div ( \frac{67}{10} - x) = 2.6 \\ \\ - \frac{247}{25} \div \frac{67 - 10x}{10} = 2.6 \\ \\ - \frac{247}{25} \times \frac{10}{ 67 - 10x} = 2.6 \\ \\ - \frac{494}{5(67 - 10x)} = 2.6 \\ \\ - 494 = 13(67 - 10x) \\ \\ 38 = - (67 - 10x) \\ \\ 38 = - 67 + 10x \\ \\ - 10x = - 67 - 38 \\ \\ - 10x = - 105 \\ \\ x = \frac{21}{2} = 10.5$