Answers

  • Brainly User
2016-02-12T07:36:10+08:00
Equation 1:   
     
     x - y = 28

Equation 2:
 
     x = 3y + 4

Solve by substitution method:
   
    x - y = 28
   (3y + 4) - y = 28
   3y - y + 4 = 28
   2y = 28 -4
   2y/2 = 24/2
   y = 12

The numbers are:
Larger number: x = 3y + 4
                            x = 3(12) + 4
                            x = 36 + 4
                            x = 40

Smaller Number: y = 12

ANSWER:  The numbers are 40 and 12.

Check:
     40 - 12 = 28
     28 = 28



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