Answer:
[tex]3.2t-2.4[/tex]
Step-by-step explanation:
The polynomial given for simplification is:
[tex]-3.6-1.9t+1.2+5.1t[/tex]
Now, we combine like terms using the commutative property of addition.
The commutative property of addition states that:
[tex]a+b=b+a[/tex]
So, the order can be shuffled when we add terms.
The terms containing 't' are grouped together and the constant terms are grouped together. This gives,
[tex]-1.9t+5.1t+1.2-3.6[/tex]
Now, we group them using associative property and converse of distributive property as:
[tex](-1.9+5.1)t+(1.2-3.6)[/tex]
Simplifying the above expression, we get:
[tex](-1.9+5.1)t+(1.2-3.6)\\3.2t-2.4[/tex]
Therefore, the simplified form is [tex]3.2t-2.4[/tex]