Question

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
i) -2x = -10
j) 15 = -3x
k) -40 = -5x
ME AJUDEM , POR FAVOR.

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
x=10/-3
x=-10/3 ou - 3,33

e) (-5x = -12) * (-1)
5x=12
x=12/5 ou 2,4

f) -4x = 8
x=8/-4
x= -2

g)( -3x = -9) *(-1)
3x=9
x=9/3
x=3

h) -5x = 15
x=15/-5
x=-3

i) (-2x = -10)*(-1)
2x=10
x=10/2
x=5

j) 15 = -3x
-3x=15
x=15/-3
x= -5

k) (-40 = -5x)*(-1)
40=5x
5x=40
x=40/5
x=8