2x+y=10
2x+y-9=2
WHat is X?
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Step-by-step explanation:
2x+y=10.........[1]
2x+y-9=2
2x+y=2+9
2x+y=11........[2]
subtract equation [1] and [2]
2x+y=10
2x+y=11
________
-x=-1
* x = 1
Hope it helps you ....
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