What is the value of x in the equation x + 10 = 13?
O-3
03
0 13
O 23

Hi! Your answer is x = 3.

Please see an explanation for a clear and better understanding to your problem.

Any questions about my answer and explanation can be asked through comments! :)

Step-by-step explanation:

Our goal is to find the value of x. That means what we have to do is to isolate x-term first.

To isolate a variable means that to make a variable as a subject or also known as leaving a variable alone. To isolate the x-term for this problem, simply subtract both sides by 10 so we can get rid of 10 from the left side.

If you are not sure that the answer is correct or not. We can substitute the value of x in the equation.

Substitute x = 3 in the equation.

The equation is true for x = 3. Hence, we can conclude that x = 3 is the solution to the equation.

what is the question? i am guessing you are looking for the area.

to find an area, you have to do length x width.

in this case, it would be 12 ft x 4 ft = 48 sq. ft