Respostas

2014-08-21T20:25:11-03:00
A) x = 200 - 100
    x = 100

b) x = 300 - 158
    x = 142

c) x = 549 + 136
    x = 685

d) x = 400/20
    x = 20

e) x = 4638/2
   x = 2319

f) x = 256/16
   x = 16

g) x = 2 x 15
    x = 30

h) x = 69 x 27
    x = 1863

i) x = 39 x 48
   x = 1872
Isias Eu preciso com os calculos :'(
2014-08-21T21:11:30-03:00
A) x + 100 = 200
x = 200 - 100
x = 100

b) x + 158 = 300
x = 300 - 158
x = 142

c) x - 136 = 549
x = 549 + 136
x = 685

d) 20x = 400
x = 400/20
x = 20

e) 2x = 4638
x = 4638/2
x = 2319

f) 16x - 256
16x = 256
x = 256/16
x = 16

g) x/15 = 2/1 =
x/15 = 30 /15
x = 15

h) x/27 = 69/1
x/27 = 1863/27
x = 1863

i ) x/48 = 39/1
x/48 = 1873/48
x = 1873
1 5 1