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BRAINIEST AND YOU WILL GET 10 POINTS!

What is the value of p in the equation 4p + 3(p + 4) = 12p + 12?
12, 1, 0, -1.

Which of these is a simplified form of the equation 7x + 4 = 5 + 3x + 1x?
3x = 9, 3x = 1 , 11x = 9, 11x = 1

What is the value of z in the equation 3z + 5 = 4z − 8?
13, 1, -13, -1

The work of a student trying to solve the equation 3(4x − 2) = 9 + 2x + 5 is shown below:

Step 1: 3(4x − 2) = 9 + 2x + 5
Step 2: 12x − 2 = 14 + 2x
Step 3: 12x − 2x = 14 + 2
Step 4: 10x = 16
Step 5: x = 1.6

In which step did the student first make an error and what is the correct step?


Step 2: 12x − 2 = 4 + 2x

Step 2: 12x − 6 = 14 + 2x

Step 3: 12x + 2x = 14 + 2

Step 3: 12x − 2x = 14 − 2

Respuesta :

1 - The value of p in the equation is p = 0.

2 - The simplified form of the equation is 3x = 1, the reason behind this is when you do the equation, you get x = 1/3. When you do the equation 3x = 1 you get x = 1/3 as well.

3 - The value of z in the equation is z = 13.

4 - In order to figure out what step he did something wrong on, we first need to solve the problem, the answer we will get is x = 2.
To do this the easy way, we can solve each step, and see what one wouldn't equal 2, which the step he did wrong is Step 2.
So, to do Step 2 correctly, it would be: Step 2 - 12x − 6 = 14 + 2x.

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