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Viefleur [7K]
3 years ago
10

Arlene us showing her work in simplifying(−7.9)+8.2−3.4+2.1 identify any error in her work or in her reasoning.

Mathematics
1 answer:
Brums [2.3K]3 years ago
4 0
Keep doing each step manually, and see where it slips up: −7.9+8.2−3.4+2.1=−1 −7.9+8.2+(−3.4)+2.1=−1 −7.9+(−3.4)+8.2+2.1=−1 (−7.9+(−3.4))+(8.2+2.1)=−1 −11.3+10.3=−1

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Step-by-step explanation:

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Can someone help or show me how to simplify this equation 22.5+7(n-3.4)
Scorpion4ik [409]
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Remove unnecessary parentheses
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3 years ago
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Which is equivalent
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Step-by-step explanation:

We have

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3 years ago
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