SOLUTION: find four consecutive integers such that if the sum of the first and third is multiplied by 2, the result is 20 less than three times the fourth

Question 751839: find four consecutive integers such that if the sum of the first and third is multiplied by 2, the result is 20 less than three times the fourth
Answer by malglu(63) (Show Source): You can put this solution on YOUR website!
let the numbers be
x x+1 x+2 and x+3 as they are consecutive
using algebra we can wrote what we know as
2(x + (x+2)) = 3(x+3) -20
so
4x +4 = 3x -11
x= -15
so the numbers are
-15
-14
-13
-12
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