Question

3)Nas funções f (x) =2×-10,ache x,para f (x)=-4 e no g (x)=5x-1,ache x para g (x) =-2.​

Answer 1

Resposta:

f(x)=2x-10

f(x)=-4 logo

-4=2x-10

2x=-4+10

2x=6

x=3

g(x)=5x-1

g(x)=-2

-2=5x-1

5x=-2+1

x=-1/5