Question

Calcule o valor de x
$\frac{x+1}{5} = \frac{8}{10}$

Answer 1

Olá Gabriel,


$\mathsf{\dfrac{x+1}{5}=\dfrac{8}{10}\Rightarrow x+1=\dfrac{8\cdot5}{10}\Rightarrow x+1=\dfrac{40}{10}\Rightarrow x+1=4}\\\\=\\\\\mathsf{x=4-1\Rightarrow \boxed{\mathsf{x=3}}}$

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