Question

Resolva as equações a) 2x+5=21 b) 2(x+3)-4=X. C) x/6= 6/2 d) x+x+x=189 preciso urgentemente

Answer 1

Resposta:

a) 2x+5=21    ==> x= (21-5)/2 =8

b) 2(x+3)-4=x

2x+6-4=x

x= -2

c) x/6= 6/2

x=6*3=18

d) x+x+x=189

3x=189

x=63

Answer 2

Resolva as equações

a) 2x+5=21

2x=21-5

2x=16

x=16/2

x=8

s=[8]

b) 2(x+3)-4=X

2x+6-4=x

2x-x=4-6

x=-2

s=[-2]

C) x/6= 6/2

2x=6.6

2x=36

x=36/2

x=18

s=[18]

d) x+x+x=189

3x=189

x=189/3

x=63

s=[63]

espero ter ajudado!

boa noite!