What does it mean when i see | | in math? here is an example |-5|?
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The area of the house is the amount of space on the house.
- The length of the addition is x + 20
- The area of the original house is
The area of the addition is given as:
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Factorize
Factor out x + 20
The width of the addition is x - 10.
Hence, the length of the addition is x + 20
<h3>The area of the original house</h3>The dimension of the original house is
x + 20 by x + 10
So, the area is:
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This gives
Hence, the area of the original house is
Read more about areas at:
Start with
Add 2x to both sides:
Subtract 21 from both sides:
Divide both sides by 5. Since it is positive, we don't have to change the inequality sign:
So, the answer is