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The sum of two numbers is 82. three times the larger number minus four times the smaller number is 29. find the numbers

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ElenaClaudia
we call : a, b - the numbers

  a + b = 82    │ × 4 
3a - 4b = 29


4a + 4b = 328
 3a - 4b = 29           +
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  7a    /  = 357

7a = 357                            a + b = 82

a = 357 : 7                        51 + b = 82

a = 51                                  b = 31