Respuesta :

Autumnspring

Answer:

x= -3

Step-by-step explanation:

3(x-4)= -21

x - 4 = -7( to get this divide both sides of the equation by 3 )

x = -7 + 4 ( add 4 to both sides of the equation)

x = -3 ( then add -7 and 4 to get -3)

So clearly x = -3

HOPE THIS HELPED
HERE IS YOUR ANSWER


3(x-4)= -21

=3x-12=-21

=3x= -21+12

=3x= -9

= x= -9/3

=x= -3

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