Question

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Answer 1

Resposta:

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

2x - 5x = - 1 - 5  

-3x=-6

x = -6/-3

x = 2  

b) 5+6x = 5x + 2  

6x -5x= 2 - 5  

x = -3  

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

x + 2x - x = 1

2x = 1  

x = 1/2  

d) -3x + 10 = 2x + 8 +1  

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

-5x = -1

x = 1/5

e) 6x -x = 9+5

5x=14

x = 14/5

f) 11x = 12  

x = 12/11

g) -x-5+4x = -7+6x+15

-3x = 15 + 5 -7

-3x = 13

x = - 13/3

h) 3x-2x = 3x + 2  

3x-2x-3x = 2  

-2x = 2

x = 2/-2

x = - 1  

i) 2 -4x = 32 - 18x + 12  

  -4x +18x = 12 + 32 - 2  

   14x = 42

x = 42/14  

x = 3  

j) 2x -1 = -3 + x + 4  

2x - x = -3+4+1

x = 2  

l) 3x-2-2x-3=0

x = 3+2

x = 5  

m)  10 - 9x+2x = 2 - 3x

-9x +2x + 3x = 2 - 10  

-4x = -8

x = -8/-4

x = 2  

n) -x = -6 + 90 + 4  

-x = -88(-1)

x = 88  

o)  2 - 3x = -2x + 12 - 3x  

-3x + 2x + 3x = 12 - 2  

2x = 10  

x = 10/2  

x = 5  

Explicação passo-a-passo: