Question

8 - Resolva as equações:
un
a) x +5 = 8
b) X-4= 3
c) x+6=5
d) x-75-7
0= x + 12
-3= x + 10
g) 3x = 15
h) 2x = 14
i) 4x = -12
j) 35x = -105
ell
1O* * * *​

Answer 1

a) x=8-5

x=3

b)x=3+4

x=7

c) x=5-6

x=-1

Answer 2

a)x+5=8

x=8-5

x=3

b)x-4=3

x=3+4

x=7

c)x+6=5

x=5-6

x=-1

d)x-75=7

x=7+75

x=82

e)x+12=0

x=-12

f)-3=x+10

x=-3-10

x=-13

g)3x=15

x=15/3

x=5

h)2x=14

x=14/2

x=7

i)4x=-12

x=-12/4

x=-3

j)35x=-105

x=-105/35

x=-3