Question

Determine o valor de x

A) X:(-3) =-8
B)24=44-5x
C)8x-32=-40
D)100:(-x)+20
E)-3x-20=-35
F)80=2x-18

Answer 1

A) x : (-3) = -8 --> x = -8 *(-3)--> x = +24

B) 24 =44-5x --> 5x = 44-24-->5x = 20---> x = 4

C) 8x-32= -40 --> 8x = -40+32-->8x= -8 --> x = -1

D) 100:(-x)= 20 --> -x = 100:20 --> - x = 50 --> x = -50

E) -3x-20= -35 --> -3x =-35+20 -->-3x= -15 -->3x=15 --> x= 5

F) 80=2x-18 --> 80+18 = 2x -->98 = 2x --> x = 49