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09-01-2019
Mathematics

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20. Find the value of the variable y in the equation –5.7 + y = 8.2. A. –2.5 B. 2.5 C. –13.9 D. 13.9

Respuesta :

03-01-2021

Answer:

[tex]\huge\boxed{D.\ 13.9}[/tex]

Step-by-step explanation:

[tex]-5.7+y=8.2\qquad|\text{add 5.7 to both sides}\\\\-5.7+5.7+y=8.2+5.7\\\\y=13.9[/tex]

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