Question

resolva as equaçoes? ( gente me ajuda e pra amnha e so falta essas) a) 2x-4-8=4x b) 3x =x + 1 + 7 c) 360+ 36x = 30x d) 2x +5 - 5x =-1 e) 5 + 6x = 5x + 2 f x +2x - 1 -3 -=x
g) - 3x+10 = 2x +8 + 1 h) 5x -5+x = 9 + x

Answer 1

Resposta:

a) 2x-4-8=4x

2x-4x=8+4

-2x=12

x=12/-2

x=-6

b) 3x =x + 1 + 7

3x-x=1+7

2x=8

x=8/2

x=4

c) 360+ 36x = 30x

36x-30x=-360

6x=-360

x=-360/6

x=-60

d) 2x +5 - 5x =-1

2x-5x=-1-5

-3x=-6

x=-6/-3

x=2

e) 5 + 6x = 5x + 2

6x-5x=2-5

x=-3

f) x +2x - 1 -3 -=x

x+2x-x=3+1

2x=4

x=4/2

x=2

g) - 3x+10 = 2x +8 + 1

-3x-2x=8+1-10

-5x=-1

x=1/5

h) 5x -5+x = 9 + x

5x+x-x=9+5

5x=14

x=14/5