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8x-8y=80 and 4x-4y=-40
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8x-8y=80 and 4x-4y=-40

User Hypnobrew
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Multiply by 2 which is 8x-8y=-80then subtract from 8x-8y=80 you will get 0=160 so that it is no solution. Have a nice day.
User Justin Helgerson
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