Solve for x.
3 • 4 – 3 • 7 = 3(x – 7)

3 • 4 – 3 • 7 = 3(x – 7) ; 3 • 4 – 3 • 7 = 3x - 21 ; 12 - 3 • 7 = 3x - 21 ; 12 - 21 = 3x - 21 ; -9 = 3x - 21 ; -3x = -21 + 9 ; -3x = -12 ; x = -12/-3 ; x = 4

Question

Asked 2/26/2016 2:19:01 PM

Updated 129 days ago|11/14/2018 4:11:18 AM

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3 • 4 – 3 • 7 = 3(x – 7) ;

3 • 4 – 3 • 7 = 3x - 21 ;

12 - 3 • 7 = 3x - 21 ;

12 - 21 = 3x - 21 ;

-9 = 3x - 21 ;

-3x = -21 + 9 ;

-3x = -12 ;

x = -12/-3 ;

x = 4

3 • 4 – 3 • 7 = 3x - 21 ;

12 - 3 • 7 = 3x - 21 ;

12 - 21 = 3x - 21 ;

-9 = 3x - 21 ;

-3x = -21 + 9 ;

-3x = -12 ;

x = -12/-3 ;

x = 4

Added 129 days ago|11/14/2018 4:11:18 AM

This answer has been confirmed as correct and helpful.

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