Write a word phrase for each algabraic expression
2(5-n)

For this case we have the following algebraic expression.

2 (5-n)

Where,

n: is a variable that belongs to the expression.

We can write the algebraic expression as a phrase, as follows:

2 (5-n) = two times the value of five minus n

A word phrase for the algabraic expression is:

2 (5-n) = two times the value of five minus n

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this