Question

Qual valor do número x ?
x=(2+2-¹) : ( 2-2-¹)

Answer 1

vamos lá...

$x=( 2+2^{-1})\div(2-2^{-1}) \\ \\ x=(2+ \frac{1}{2} )\div(2- \frac{1}{2} ) \\ \\ x=( \frac{4+1}{2} )\div( \frac{4-1}{2} ) \\ \\ x=( \frac{5}{2} )\div( \frac{3}{2} ) \\ \\ x= \frac{5}{\not2} \times \frac{\not2}{3} \\ \\ x= \frac{5}{3}$