Question

5. Resolva
a) - x=9
b) -x= -2
c) -7x = 14
d) -3x = 10
e) -5x = -12
f) - 4x = 8
g) -3x = -9
h) -5x = 15
0) -2x = -10
D 15 = -3%
K-40 = -5x​

Answer 1

a) - x=9 (-1)

x= - 9

b) -x= -2(-1)

x= 2

c) -7x = 14

x= 14/-7

x= - 2

d) -3x = 10(-1)

3x= - 10

x= - 10/3

e) -5x = -12 (-1)

5x= 12

x= 12/5

f) - 4x = 8

x= 8/-4

x= -2

g) -3x = -9

x= - 9/-3

x= 3

h) -5x = 15

x= 15/-5

x= - 3

0) -2x = -10

x= - 10/-2

x= 5

D) 15 = -3%

k) -40 = -5x

5x = 40

x= 40/5

x= 8