PLEASE HELP ME!!!
1. Which of the following is an example of an open equation?
A. -2b = 6
B. 4a - 5 = 12
C. 5Y = y +8
D. Z-15= -12
2. Which of the following equations has 3 as the solution?
A. -2b=6
B. 4a-5=12
C.5y=y+8
D. Z-15=-12
my answers:
1. 8+0=8
2. 4a - 5 =12
Are these correct??
no.
Do you know what an open equation is?
Your answer is just an expression of the additive identity.
In fact, all of the choices are open equations.
For the second one,
4a - 5 =12
is clearly false if a=3, since
4*3-5 = 12-5 = 7
In fact, none of the equations has 3 as its solution.
You have some serious homework problems here!
And by that, I mean either
(a) problems with the questions/answers
(b) problems with your typing