Solve and check the equation #12

label Algebra
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Solve and check the linear equation.

  9x - (7x - 1) = 2


Mar 29th, 2015

9x - 7x + 1 = 2 
2x + 1 - 1 = 2 - 1 
2x = 1 
x = 1/2 

And you have to check the original equation. 

9 * (1/2) - [7 * (1/2) - 1] = 
4.5 - (3.5 - 1) = 
4.5 - 2.5 = 
2

Mar 29th, 2015

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Mar 29th, 2015
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Mar 29th, 2015
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