Question

resolva as seguintes equacoes , sendo U=Q a) x+27 =12 b) 6x= 84 c)5x-38=7x+6

Answer 1

Resposta:

A= X = -15

B= X = 14

C= X = -22

Answer 2

a) X= 12 - 27

X= -15

b) 6X=84

X=84/6

X=14

c) 5X-38=7X+6

5X-7X= 6+38

-2X= 44

X= -44/2

X= -22