Question

Resolva em R na equações do primeiro grau

Answer 1

4x - 20 > 0

4x > 20

x > $\frac{20}{5}$

x > 4

Answer 2

→ Cálculo :

$\large \boxed{\begin{array}{lr} {4x-20>0} \\ \\ {4x>0+20}\\\\{4x>20}\\\\{x>20\div4}\\\\\boxed{\red{x>5}} \Leftrightarrow {\rm \ Resposta} \\ \end{array}}$