Ajudem pfvr, é para um trabalho da escola.
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a)
x.50 = - 1100
x = - 1100 (:10)
50 (:10)
x = - 110
5
x = - 22
************************
b)
32 = - 4
k
32 = - 4k
-4k = 32 (-1)
4k = - 32
k = - 32/4
k = - 8
***************************************
c)
- 625 = - 25
y
- 625 = - 25y ( - 1)
625 = 25y
25y = 625
y = 625 (:5)
25 (:5)
y = 125
5
y = 25
************************************
d)
216 = - 2
t
216 = - 2t
- 2t = 216 (-1)
2t = - 216
t = - 216:2
t = - 108
**********************************
e)
- 315 + R = 220
R = 220 + 315
R = 535
x.50 = - 1100
x = - 1100 (:10)
50 (:10)
x = - 110
5
x = - 22
************************
b)
32 = - 4
k
32 = - 4k
-4k = 32 (-1)
4k = - 32
k = - 32/4
k = - 8
***************************************
c)
- 625 = - 25
y
- 625 = - 25y ( - 1)
625 = 25y
25y = 625
y = 625 (:5)
25 (:5)
y = 125
5
y = 25
************************************
d)
216 = - 2
t
216 = - 2t
- 2t = 216 (-1)
2t = - 216
t = - 216:2
t = - 108
**********************************
e)
- 315 + R = 220
R = 220 + 315
R = 535
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