ZyheirZ415646 ZyheirZ415646
  • 27-10-2022
  • Mathematics
contestada

9.1+y/7=-2.1.......¿¿¿

Respuesta :

BladimirW553268 BladimirW553268
  • 27-10-2022

Answer:

-78.4

Explanation:

Given the expression

[tex]9.1+\frac{y}{7}=-2.1[/tex]

Multiply through by 7:

[tex]\begin{gathered} 7(9.1)+y\text{ = 7(-2.1)} \\ 63.7+y=-14.7 \end{gathered}[/tex]

Subtract 63.7 from both sides

[tex]\begin{gathered} 63.7+y-63.7=-14.7-63.7 \\ y=-78.4 \end{gathered}[/tex]

Hence the value of y is -78.4

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