Answer:
4
Step-by-step explanation:
Calculator
Answer:
#2- A
#3- D
#4-1
Step-by-step explanation:
The correct answer would be : -2/5
I hope that this helps you !
Answer:
Only the second equation is an identity
Step-by-step explanation:
<u>Note that </u>
<u>You can confirm it: </u>
<u>Therefore</u>
<h2>
It is not an Identity</h2>
<u>Let's the second one</u>
In this case, we already performed the calculations, so it is true. It is an Identity.
Answer:
x = 2
2x + 1 = -x +7 Add and subtract
3x = 6 divide
x = 2