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Which of the following describes the correct process for solving the equation 2x − 4 = 20 and arrives at the correct solution?

User Rom Eh
by
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2 Answers

3 votes

Answer: its 12

Step-by-step explanation

add 4 to -4 and 20

then you have 2x = 24

then divide both sides by 2

and you get x = 12

User Gavriel Cohen
by
7.9k points
5 votes

Answer:

a) Add 4 to both sides, and then divide by 2. The solution is
x=12.

Explanation:

Question:

Which of the following describes the correct process for solving the equation 2x − 4 = 20 and arrives at the correct solution?

a) Add 4 to both sides, and then divide by 2. The solution is x = 12.

b) Divide both sides by −4, and then subtract 2. The solution is x = −7.

c) Subtract 4 from both sides, and then divide by 2. The solution is x = −12.

d) Multiply both sides by −4, and then divide by 2. The solution is x = −40.

Solution:

Given equation:


2x-4=20

We need to determine the steps in order to solve for
x.

Solving for
x.

Step 1: Adding 4 both sides.


2x-4+4=20+4


2x=24

Step 2: Dividing both sides by 2.


(2x)/(2)=(24)/(2)


x=12

Thus, we added 4 both sides and then divided both sides by 2 to get solution = 12

User Crawfish
by
8.3k points

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