Answer:
Step-by-step explanation:
We have the polynomial
( 1 )
To solve this problem we have to take into account that only we can sum term with the same order in the variable. We have the polynomials

we can note (by summing term by term) that only the sum of the first and the fourth equation correspond to the given polynomial ( 1 ) of the problem. If we organize these polynomials (that is, write the equation down in a form where higher order appears first ) we have
and if we sum we obtain

that is what we was looking for
I hope this is useful for you
regards
Answer:
=2
Step-by-step explanation:
Answer:
HB = 13
Step-by-step explanation:
In triangle GHJ, points A, B, C are mid points of the sides GH, HJ, GJ respectively.
Therefore by Mid-segment Theorem.

Answer:
the answer is B
Step-by-step explanation:
If daniels age is x years we can create the equation:_
3x = x + 4
2x = 4
x = 2
so Daniel is 2 years old