Question

o resultado da inequação - 10 > 2x + 8 e :

a) x> 5

b ) x> 3

c ) x< 6

d ) x>-5​

Answer 1

$\large\boxed{\begin{array}{l}\rm -10>2x+8\\\rm -2x-8>10\cdot(-1)\\\rm 2x+8<-10\\\rm 2x<-10-8\\\rm 2x<-18\\\rm x<-\dfrac{18}{2}\\\\\rm x<-9\\\rm o ~gabarito~da~quest\tilde ao~est\acute a~errado\end{array}}$

Answer 2

$\boxed{\begin{array}{lr} - 10 > 2x + 8 \\ - 2x > 8 + 10 \\ -2x > 18 \\ \boxed{x < - 9} \\ \\ \boxed{ \boxed{N.D.A}}\end{array}}$