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Subtract the equations 5x+4y= 25 -(5x+2y=3)
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Subtract the equations 5x+4y= 25 -(5x+2y=3)

User Sergey Teplyakov
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If you subtract you will get 2y=22. The x’s cancel out. Divide both sides by 2 and you get y=11.
User Lois
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