contestada

(07.02)

An equation is shown below:

2(7x − 3) = 9

Which of the following correctly shows the beginning steps to solve this equation?

Step 1: 
14x − 3 = 
9
Step 2: 
14x = 
12

Step 1: 
14x − 6 = 
9
Step 2: 
14x = 
15

Step 1: 
9x − 3 = 
9
Step 2: 
9x = 
12

Step 1: 
7x − 1 = 
9
Step 2: 
7x = 
10

Respuesta :

Flippo
B. Step 1.  14x - 6 = 9
Step 2.  14x = 15
2(7x − 3) = 9

First step you would do is distribute your 2 to your 7x and -3.
You would get: 14x-6=9
Second step: You would add 6 to both sides because you would want to get your 14 x to where then you'll be able to get x alone.
You would get: 14x=15 < That would be your answer
Answer: B

Now if you want to continue to solve: 

Then you would divide each side by 14, because you'll want your x to be alone.
You would get: x=1.07.......

HOPE THIS HELPS! ^_^

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