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1. formulate three word...

1. formulate three word problems from day to day life that can be translated into linear equations in one variable, two variables and three variables, respectively.

2. write a system of equations having

a. a unique solution

b. an infinite number of solutions

c. no solution.

2. write a system of equations having

a. a unique solution

b. an infinite number of solutions

c. no solution.

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