Question

Gente como que se calcula essa conta? Sem calculadora.

1
- x 3,2
2

Answer 1

$\sf 1-x+3.2+2\\\\\\{Agrupar\:termos\:semelhantes}\\\\\\=-x+1+3.2+2\\\\\\{Somar:}\:1+3.2+2=6.2\\\\\\\boxed{\sf =-x+6.2}$