Question

Se ( 2x , - 7 ) = ( 6 , - 7 ) o valor de x é :
a)2 b)3 c)1 d) 0 e)nra

Answer 1

x = 3

pois, 6 = 2x

x= 6/2

x = 3

Answer 2

( 2x , - 7 ) = ( 6 , - 7 )

2.x

2.3=6

x=6

( 2.3 , - 7 ) = ( 6 , - 7 )