Book Maths Puzzle Algebra

solve each set of linear equations by any mehtod for x and y. State whether the equations are independent, dependent, or inconsistent.
a) y = x + 6
2y - 4x = 6

b) 2x - 4y =

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Book Other Question

There are twenty-four coins consisting of nickels and dimes. If the value of the conins is $2.20, then how many nickels and dimes are there each? A train leaves Grand Central Station in New York at 1:00pm heading towards Los Angeles at 120mph. A train leavs Los Angeles at 2:00pm heading towards New York at 100mph. At what ti