Question 341959
If (x,y) satisfies both equations 2x+3y=7 and 2x-3y=4 then x is.... 
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You could find x by graphing, or by substitution, or by elimination.
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Using elimination I get:
2x+3y = 7
2x-3y = 4
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Add the two equation to get:
4x = 11
x = 11/4
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Cheers,
Stan H.