Question

resolva as equaçães:

a) 2x - 3=33x

b)7-2x=4+x

c) 5x-6=3-4x

d) 9 - 3 x = 5 + 4 x

e) x - 4 + 5 x = 4 x + 8

f)- 5 x + 3 - 2x + 1 = 0

g) - x + 1 = 2 x - 3

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Answer 1

Resposta:

a) 2x - 3 = 33x

2x - 33x = 3

-31x = 3

x = 3/-31

b) 7-2x = 4 + x

-2x - x = 4 - 7

-3x = -3

x = -3/-3

x = 1

c) 5x - 6 = 3 - 4x

5x + 4x = 3 + 6

9x = 9

x = 9/9

x = 1

d) 9 - 3x = 5 + 4x

-3x - 4x = 5 - 9

-7x = -4

x = -4/-7

e) x - 4 + 5x = 4x + 8

x + 5x - 4x = 8 + 4

2x = 12

x = 12/2

x = 6

f) -5x + 3 - 2x + 1 = 0

-5x - 2x = 0 - 1 - 3

-7x = -4

x = -4/-7

g) -x + 1 = 2x - 3

-x - 2x = -3 - 1

-3x = -4

x = -4/-3