Question

dada a função afim f ( x ) = 2X + 3 determine os valores de x para que f ( x ) = -1

Answer 1

2x+3=-1
2x=-1-3
2x=-4
x=-2

Answer 2

F (x)=2x+3 f (x)=-1

-1=2x+3
-1-3=c
- 4=2x
-4/2=x
- 2=x
F (x)=2.(-2)+3
F (x)=-4+3
F (x)= -1