Answer:
2.4h+2.2
Explanation:
4.5h-7.7+9.9-2.1h
To solve this problem, we need to combine like terms.
Because 2.1h is negative, we can subtract it from 4.5h and get 2.4h.
2.4h-7.7+9.9.
We can do the same thing with -7.7 and 9.9. 9.9-7.7=2.2. We have to stop there because constants, numbers without variables, can't be added or subtracted to coefficients, numbers with variables.
Therefore, the simplified equation is 2.4h+2.2.