Question

arme as contas
a)9•(x+3)=
b)p-104=5
c)2p-4-8=4p
d)360+36x=30x
e)2×+5-5x=-1​

Answer 1

A)

9 . (X + 3) =

 9X + 18 =

9X = -18

X = -18/9

X = -2

B)

P - 104 = 5

P = 5 + 104

P = 109

C)

2P -4 -4 = 4P

2P    -8   = 4P

2P - 4P = 8

-2P = 8

-P = 8/2

-P = 4 .(-1)

P = -4

D)

360 + 36X = 30X

36X - 30X = 360

      6X = 360

X = 360/6

X = 60

E)

2X + 5 - 5X = -1

2X - 5X = -1 -5

   -3X = -6

- X = -6/3

-X = -2 . (-1)

X = +2 OU APENAS 2