Respostas

2014-06-09T16:55:19-03:00
A) X= 11 -15
    X= -4
b) X=266 / 19
    X= 14

c) X = -2 multiplica cruzado ou seja 13x (-2)= -26 e Xx1= X então X= -26
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d)
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2014-06-09T16:55:37-03:00

A) X+15=11< => X= 11-15= -4

 B)19X=266<=> X= 266/19=14

C)X/13=- 2<=> X=13 x -2=-26

D)1,5X - 6 = 0<=> 6/1.5=4

E)1,5X + 4 = 19<=> 1.5X=15(19-4) <=>X=15/1.5<=>X=10

F)X/5-3=10<=>X/5=13(10+3)<=>X=13/5<=>X=2.6

Feito. ESpero ter ajudado :))

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