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  • 03-03-2017
  • Mathematics
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What's the answer and how to get it???

Whats the answer and how to get it class=

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  • 03-03-2017
4x and -4x cancel each other out by elimination so now you add 8y and 2y getting you 10y and now you add 20 and -30 getting you -10 so 10y=-10
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