Question

Resolva as equações,considerando U=QA) 5.m=45 
b)x.4=6 
c)w/6 =5 

D) m: 3=5 
e)3/4x =5 

f)6.p=18 
g) 8/5y=6 
h) x:7=6 
i)4.q=28 
j)m/2=12 
k)7.x=63 
i)a.8=1/8

Answer 1

a) 5.m=45 
5m = 45
m = 45/5
m = 9

b)x.4=6 
4x = 6
x = 6/4      simplifica 6 e 4 por 2
x = 3/2

c)w/6 =5 
w = 5 . 6
w = 30

D) m: 3=5 
m/3 = 5
m = 5 . 3
m = 15

e)3/4x =5 
5 . 4x = 3
20x = 3
x = 3/20

f)6.p=18 
6p = 18
p = 18/6
p = 3

g) 8/5y=6 
6 . 5y = 8
30y = 8
y = 8/30    simplifica 8 e 30 por 2
y = 4/15

h) x:7=6 
x/7 = 6
x = 6 . 7
x = 42

i)4.q=28 
4q = 28
q = 28/4
q = 7

j)m/2=12 
m = 12 . 2
m = 24

k)7.x=63 
7x = 63
x = 63/7
x = 9

i)a.8=1/8
8a = 1/8
8a . 8 = 1
64a = 1
a = 1/64