Question

The ages of 3 brothers are represented by consecutive integers. If the oldest brother's age is decreased by twice the younger brother's age, the result is ___________.

Answer 1

-x+3 is the result

Explanation:

Given that the ages of 3 brothers are represented by consecutive integers. Let the ages of 3 brothers be x-1, x and x+1 in ascending order.

Oldest brother's age
`= x+1`

Twice the younger brother's age =
`2(x-1) = 2x-2`

When the above is decreased by twice younger brother age we get

`x+1-(2x-2) = x+1-2x+2\\=-x+3`

Result is -x+3