Question

Решите уравнение 0,49(x-3)-1,6=5(0,1-0,5)

Answer 1

$0.49x - 1.47 - 1.6 = 0.5 - 2.5 \\ 0.49x = - 2 + 1.47 + 1.6 \\ 0.49x = 1.07 \\ x = \frac{107}{100} \div \frac{49}{100} = \frac{107 \times 100}{100 \times 49} = \frac{107}{49} = 2 \frac{5}{49}$

Answer 2

$0.49(x - 3) - 1.6 = 5(0.1 - 0.5) \\ 0.49x - 1.47 - 1.6 = 0.5 - 2.5 \\ 0.49 x= - 2 + 1.47 + 1.6 \\ 0.49x = 1.07 \\ x = 2.18$