Question

sendo f(x)=-3x+6 calcule o valor de x
a) f(x)=18
b) f(x)=30
c) f (x)=-15
d) f (x)=-18
favor colocar o calculo

Answer 1

A) -3X+6=18
-3X=18-6
-3X=12
X =12/-3
X= -4

B) -3X+6=30
-3X=30-6
-3X=24
X=24/-3
X= -8

C) -3X+6= -15
-3X= -15-6
-3X= -9
X= -9/-3
X= 3

D) -3X+6= -18
-3X= -18-6
-3X= -12
X= -12/-3
X= 4