Question 1011389
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Difference of two numbers is 4. The sum of thrice the larger number and four times the smaller number is 61. Find the numbers 
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From the condition, you have this system of equations:

 x -  y =  4,
3x + 4y = 61.

Solve it for x and y.

<U>Answer</U>. x = 11, y = 7.
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