Question

Calcule as funções:
a) f(x)= 2x+3
b) f(x)= x+3
c) f(x)= 1/2x+4
d) f(x)= -2x+5
e) f(x)= -2-2x

Answer 1

A)-2x=+3
x=-2/+3
x=-0,6666666666
B)x+3
- x=3
x=-3
C)0,5x+4
-0,5x=4
x=-8
D)-2x+5
2x=5
x=2,5
E)-2-2x
2x=-2
x=-1