Question

18-12x=5x-(3-4)

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Answer 1

18 - 12x = 5x - (3 - 4)

=> 18 - 12x = 5x + 1

=> 18 - 1 = 5x + 12x

=>  17 = 17x

=> x = 17 :  17

=> x = 1

Answer 2

18 - 12x = 5x - (3-4)

18 - 12x = 5x - 3 +4

-12x -5x = -3 +4 -18

-17x = -17

x = 1

=.= hk tốt!!

Answer 3

18 - 12x = 5x - (3 - 4)

18 - 12x = 5x + 1

-12x = 5x + 1 - 18

-12x = 5x - 17

-12 - 5x = 5x - 17 - 5x

-17x = -17

=> x = 1

Answer 4

18-12x  = 5x-(3-4)

18-12x = 5x-(-1)

18-12x = 5x+1

-12x-5x = -18+1

-17x = -17

x = 1