Step-by-step explanation:
To find the perimeter of something, we add all of the measurements of the sides together.
A rectangle has 4 sides, this means we must double the algebraic hints given to us.
If we add them all up together it will look like this:
x-9+x-9+3x-4+3x-4=138
If we simplify it by collecting the like terms:
8x-26=138
We add 26 onto 138
8x=164
To find out what x equals, we divide by 8:
164÷8= 20.5
Answer:
x=20.5cm
x-9 is 11.5
3x-4 is 57.5
I know that you will not give 100 points but just wanted to help.
Answer:

Step-by-step explanation:
Given the expression




Cancel the common factor: x+y

Thus,

Answer:
There is a few ways to answer this:
The actual and simple way: 19
The way we use for fun, (meme way): 910
<h2>ANSWER:</h2>
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Answer is x = 6
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<h2>EXPLANATION:</h2>
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We know that 7 - 1 is 6. 6 is what x equals because 7 - 1 is 6 and 6 + 1 is equal to 7.
Hope this helps!
Answer:
11/15 = 0.733333
But the terminating decimal is 0.73
Step-by-step explanation: