Question

решить уравнение 5-две пятых х=11

Answer 1

$5 - \frac{2}{5} x = 11$

$\frac{2}{5} x = 5 - 11$

$\frac{2}{5} x = -6$

$х = -6 \div \frac{2}{5}$

$х = -6 \times \frac{5}{2}$

$х = \frac{30}{2}$

$х = 15$

Answer 2

5-2/5х=11
5-11=2/5х
2/5х=-6
х=-6:2/5
х=-15