The first step in simplifying this expression is to identify which, if any, terms can be combined. Remember, only like terms — constant terms or terms with the same variable — can be combined.
( 2x+ 3)+( x+ 1)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 + 3
&+ x + 1
& 3 x + 4
Therefore, we get the following result.
(2x+3)+(x+1) = 3x + 4
