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8x + y - 6y - 5x= 8x - 5x + y - 6y= 3x - 5y
With simultaneous equations like these, you first want to get to a point where you have one equation with only one variable. To do this, you must eliminate one of the variables. In this case, if you multi...
5x + 12y = 134
300 - 0.03= 299.97
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