Question

resolva as esquaçoes;
a)-47x=611
b)-10x=-10
c)-30x=9000
d)-2x -1000=0
e)39x+78=0
f)-8-x+2999=0

Answer 1

Opa,

a) - 47 x = 611
     - x = 611 / 47
     - x = 13 ( -1 )
      x = - 13

b) -10x = -10
    - x = - 10 / 10
     - x = - 1 (-1)
       x = 1

c) - 30x = 9000
      - x = 9000 / 30
      - x = 300 ( -1)
        x = -300

d) - 1000 = 2x
    2x = -1000
    x = -1000/2
    x = -500

e) 39x + 78 =0
     39x = -78
       x = -78 / 39
       x = -2

f) -8 +x + 2999 = 0
   x = - 2999 + 8
   x = -2991

Um abraço!. :)