Respostas

2014-08-23T19:45:01-03:00
A) y =700 +426
y = 274

b)a/6= 132
a = 132 x 6
a= 792

c) 6x= 71+19
6x= 90
x= 90 : 6
x= 15

d) 2x/5= 10 - 4
2x/5 = 6
mmmc de 5 e 1 = 5
2x=30
x = 30 : 2
x = 15

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2014-08-23T19:53:29-03:00
A) y-426=700

y=700+426

y=1126

b) a/6=132

a= 132 x 6

a=792

c) 6x-19=71

6x=71+19

6x=90

x=90:6

x=15

d) 2x/5+4=10

2x/5=10-4

2x/5=6

mmc entre 5 e 1 é 5

2x=30

x= 30:2


x=15







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