Question

A ) 4x-4=0
B )8x-8=0
C)100x-50=0
D)30x-90=0

Answer 1

Bom dia, espero ter ajudado :)


a) 4x-4=0
4x=0+4
4x= +4
x= -4/4
x=1

b) 8x-8=0
8x= 0+8
8x= +8
x= 8/8
x=1

c) 100x-50=0
100x=0+50
100x=+50
x= 50/100
x= 1/2
Ou x= 0,5

d) 30x -90=0
30x= 0+90
30x= 90
x= 90/30
x=3/1
x=3