Call the numbers x and y. Let y be the larger number.
The second of 2 numbers is 5 more than twice the first is y = 2x+5
Their sum is 29 is x+y=29.
Substitute 2x+5 for y in the second equation.
x+2x+5=29
3x=24
x=8
y = 2(8) + 5 = 21
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