Three Consecutive integers are as such they, are taken in increasing order and multiplied by 2,3,and ,4 respectively , they add up to 56. Find these numbers.
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Answer:
The three consecutive integers are: 5, 6, 7
explanation:
First, name the three consecutive integers.
Let's call the first integer:
n
Then the next two integers will be
(n+1) and (n+2)
If we then multiply them as described in the problem and sum these products to 56 we can write an equation as:
2n+3(n+1)+4(n+2)=56
We can now solve this equation for n:
2n+(3×n)+(3×1)+(4×n)+(4×2)=56
2n+3n+4n+3+8=56
3+4n+8=56
2n+3n+4n+3+8=56
(2+3+4)n+(3+8)=56
9n+11=56
9n+11−11=56−11
9n+0=45
9n=45
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