You are close, but it is not the correct answer.
1 + 2k = 5k + 7
First, since we are trying to get the variable by itself, we need to move all things to one side. Let's subtract 1 from each side.

Second, we can now subtract (7 - 1) to get 6. Let's add that into our problem and then subtract 5 from each side, still trying to get the variable by itself.

Third, subtract (2k - 5k) to get -3k. Hint the negative symbol now. If the problem were switched the other way, it would still be a positive.

Fourth, we can now divide each side by -3. This results in a fraction and also getting the variable by itself on one side of the problem. Remember the negative sign in front of the fraction since (-3) carried it.
Fifth, this is our last step. We need to simplify the fraction. Since out fraction is 6/3, which number multiples by 3 to get the answer of 6? The answer is 2, since (3 × 2 = 6). Don't forget the negative!

Answer:
Answer:
Step-by-step explanation:
9X+5Y=35
2X+5Y=0
-(2X+5Y=0)
-2X-5Y=0
9X+5Y=35
7X=35
X=5
2(5)+5Y=0
10+5Y=0
5Y=-10
Y=-2
X=5 Y=-2
Question is Incomplete,Complete question is given below;
Figure ABCD is a parallelogram.
What are the lengths of line segments AB and BC?
AB = 4; BC = 16
AB = 4; BC = 8
AB = 10; BC = 20
AB = 10; BC = 28
Answer:
AB = 10 ;BC =28.
Step-by-step explanation:
The Diagram is missing in the question we have attached the diagram for your reference.
Given:
AB = 
DC = 
BC = 
AD = 
We need to find the lengths of AB and BC.
Solution:
Since given that Figure ABCD is a parallelogram.
"The opposite side of parallelogram are equal."
Hence we can say that;
AB = DC
Substituting the value we get;

Combining the like terms we get;

Dividing both side by 2 we get;

Now AB = 
Also
BC = AD
Substituting the value we get;

Combining the like terms we get;

Now BC = 
Hence AB = 10 and BC =28.