the sum of -2 and 6 and 7 is (-2+6+7)
5
It is simply: f+6
2.5
The expression (not equation) is 6 + 7
the sum of -2 and 6 and 7 is (-2+6+7)
6+n
5
The expression h + 56 can't be simplified. If you assign a value to h, you can calculate the sum.
6
19 + 6
6(4+y)
It is simply: f+6
2.5
The expression (not equation) is 6 + 7
NO
The expression appears to be: (12-4t)/6