4c+5.6d=1360
Let
Children (c)=x
Adults (d)=284-x
4x+5.6 (284-x)=1360
Solve for x
4x+1590.4-5.6x=1360
4x-5.6x=1360-1590.4
-1.6x=-230.4
X=230.4÷1.6
X=144 children
284−144=140 adults
Answer:

Step-by-step explanation:
I assume that you need simplification of the given expression.
The given expression is:

Using distributive property and multiplying 2 inside the parenthesis and 1 inside the other parenthesis. This gives,

Therefore,
is equal to:

Now, combining like terms using the commutative property of addition, we get:

Therefore, the simplified form is 
N, N+2, and N + 4 are the ages
(N + 4) - (2N) = (N + 2) -24
4 - N = N - 22
2N = 26
N = 13
The brothers are 13, 15, and 17 years old.
HOPE THIS HELPS!!
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