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Help me guys! i did number one pls help me

Help me guys! i did number one pls help me-example-1
User Illeb
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1 Answer

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3) \text{ } 2y+10x\\\\4) \text{ } (1)/(2)x-(1)/(2)y\\\\5) \text{ } 8a+16b-6a=2a+16b\\\\6) \text{ } -2.5(5+4n)=-12.5-10n

User Bunkus
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