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For the following problems, write an equation

 

using a different variable (let- ter/symbol) for each problem – and then solve the equation for your variable.

 7) 

A lab technician cuts a 12 inch piece off tubing into two pieces in such a way that one piece is 2 times longer than the other. How long are the pieces?
 

 Mar 16, 2021
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x+y=12 1) x=2y 2)

2y+y=12

3y=12/3=4

2y=2(4)= 8

One pice is 4 inches the other one is 8 inches

 Mar 16, 2021

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