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.
( 11x - 8)+( 7x - 7)
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.
& 11 x - 8
&+ 7 x - 7
& 18 x -15
Therefore, we get the following result.
(11x-8)+(7x-7) = 18x-15
