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Plain English MAT096 LaGuardia Community College
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0. HowtoPEM
1. Radicals
2. Scientific Notation
3. Exponents
4. Polynomials
5. Factoring
6. Linear Equations
7. Systems of Equations
8. Literal Equations
9. Quadratic Equations
9.1. Linear Inequalities
9.2. Functions
9.3. Equation of the Line
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Exercise 37.
Exercise 38.
First of all, this formula is used to find the permiter of a rectangle.
However, what we need to do in this exercise is to solve W (width).
First, we switch 2L to the left keeping in mind the every time we switch a variable its sign will change as well. So it should look like this:
P  2L = 2W
Second, in order to isolate only W, we should divide evrything by 2.
P/2  2L/ 2 = 2W/2
Third, we simplify same terms and the answer should be:
P/2  L = W or W= P/2  L
Exercise 39.
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Exercise 37.
Exercise 38.
First of all, this formula is used to find the permiter of a rectangle.
However, what we need to do in this exercise is to solve W (width).
P  2L = 2W
P/2  2L/ 2 = 2W/2
P/2  L = W or W= P/2  L
Exercise 39.