Answer:
the answer is -2.1
Step-by-step explanation:
you get this by putting that -4 where the x is and solving so it would look something like this
1.7x+4.7 for x= -4
1.7(-4) + 4.7
-6.8 + 4.7
-2.1
28 - 10 - 15 - 3
=> 18 - 15 - 3
=> 3 - 3
=> 0
Another way:
=> 28 - 10 - 15 - 3
=> 28 - 25 - 3
=> 28 - 28
Given:
To find:
We know:
Substitute