Question

I really need help.

1. 4 – 2y = 2 (9 – y)




2. 5 ( 3 – m) + 5m = 15






3. -2 |x| - 7 = -3

Answer 1

are you solving for the variables?

Answer 2

Yes.

Answer 3

3 is x=6

Answer 4

Okay, well I am trying to solve the first one and the y's cancled, sooooo yeah..... idk what to do there

Answer 5

2*9 2*(-y)

4 – 2y = 18 -2y
-4 -4

-2y = 14 - 2y
+2y +2y

y = 14


5 ( 3 – m) + 5m = 15

15 -5m + 5m = 15

15 = 15 so yes :P

Answer 6

4 – 2y = 2 (9 – y)
4 - 2y = 18 - 2y

The 2y cancels out on both sides leaving with 4 = 18 which can never be true. Therefore, there is no solution for this equation. There is no value of y that can make 4 equal 18.

Answer 7

Oh thats what you're going for >.>

Answer 8

5 ( 3 – m) + 5m = 15
15 - 5m + 5m = 15
the 5m cancels out leaving with 15 = 15 which is always true.
So all real numbers are solutions. So m is any real number.

Answer 9

Ok.

Answer 10

-2 |x| - 7 = -3
add 7 to both sides:
-2|x| = 4
divide both sides by -2:
|x} = -2
The absolute value of x can NEVER be negative.
Therefore there is NO solution for this equation.

Answer 11

5th line above is supposed to be |x| = -2

Answer 12

Alright thank you.

Answer 13

You are welcome.