Question

TIM X 

2.x + x =  18

Answer 1

2x+x=18

=> 3x =18

=> x= 18 : 3

=> x= 6

tíc mình nha

Answer 2

ta co

2.x+x=18

=>3x=18

=>x=18

Answer 3

2.x + x = 18

=> 2.x + x.1 = 18

=> ( 2 + 1 ) . x = 18

=> 3 . x = 18

=> x = 18 : 3

=> x = 6