Combine like terms 7a - a+ 16 = ?
6a+16Explanation:If there's just a variable, there's an understood 1 in front of it. So what that really says is:7a-1a+16So, you combine the a's. 7a minus 1a is 6a. Same as 7-1,but you have a variable stuck on the end of it.6a+16:^)
7a - a + 16 = 7a - a = 6a6a + 16 =