Question

what is the equation of 2/5 * x = 2​

Answer 1

Answer:

the narrow sphere on the earth which sustain life is called biosphere

Answer 2

$\frac{2}{5} \times x = 2 \\ 2x = 2 \times 5 \\ 2x = 10 \\x = \frac{10}{2} \\ x = 5$