First of all you have to make them equal to each other. What I mean is the following
3x+20=2x+40
Then you should just solve for x
Answer:
18.248287
8.2
Step-by-step explanation:
we know that
Additive identity property:
If we add a real number to zero or add zero to a real number, then we get the same real number back.
The number zero is known as the identity element, or the additive identity.
For example: a+0 =a
we can see that adding gives same result
so, 0 is the additive identity here
Hence , option-B........Answer
Answer:
<h2>17</h2>
Step-by-step explanation:
f(x) = 11 - 3x
f(-2) - <em>put x = -2 to the f(x):</em>
<em />
f(-2) = 11 - 3(-2) = 11 + 6 = 17
25 questions
Explanation: 20 divided by 25 is .8 which is 80%