A larger integer is 1 more than 4 times anotherinteger.if the sum of the integer is 25.find the integer?
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A larger integer is 1 more than twice another:
Equation 1: x = 2y + 1
The sum of the integers is 25:
Equation 2: x + y = 25
We can use substitution to solve for y since, from equation 1, we already
know that x = 2y + 1. Replace the x in equation 2 with 2y+1
(2y+1)+y=25 drop parenthesis, not needed, and add y variables
3y+1 = 25 subtract 1 from both sides
3y = 24 divide both sides by 3
y = 8
We now know the 2nd number is 8.
Since x = 2y + 1 we have x = 2(8)+1 = 17
Your numbers are 8, 17
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