Question

Resolva as equações abaixo:

A) -5X-4 = -6X+5

B) +8A+3 = +2A-15

C) -5+2B = -4B+12

D) +A/3-2 = -3A/6-5/2

E) +5K/3 = -1/2 + K/6

F) 2B+3/8 = +B/4+2/5

Answer 1

A) -5X-4 = -6X+5
-5x+6x = 5+4
x= 9

B) +8A+3 = +2A-15
+8a-2a = -15 - 3
6a= - 18
a = -18/6 = - 3

C) -5+2B = -4B+12
2b+4b = 12+5
6b=17
b= 17/6

D) +A/3-2 = -3A/6-5/2
a/1 = -3a/ 1/2
a = 2. -3a
a= -6a
-7a = 0
a = 0

E) m.m.c = 6
2.5k = 3. -1 + k
10k = -3 + k
10k- k = - 3
9k = -3
k = -3/9
k = -1/3

F) m.m.c = 40
40.2b + 5.3 = 10.b + 8.2
80b + 15 = 10b + 16
80b- 10b = 16 - 15
70b= 1
b= 1/70

espero ter ajudado e que tudo esteja correto. :)