Now, let's identify which, if any, terms can be combined. Remember, only like terms — constant terms or terms with the same variable — can be combined.
( 2x+ 28)+( 2x - 14)
In this case, we have two x-terms and two constants. Let's arrange the like terms in columns. Then, let's perform the addition.
& 2 x + 28
&+ 2 x - 14
& 4 x +14
Therefore, we get the following result.
2(x+14)+(2x-14)=4x+14
