Question

9.1+y/7=-2.1.......¿¿¿

Answer 1

-78.4

Step-by-step explanation:

Given the expression

`9.1+(y)/(7)=-2.1`

Multiply through by 7:

`\begin{gathered} 7(9.1)+y\text{ = 7(-2.1)} \\ 63.7+y=-14.7 \end{gathered}`

Subtract 63.7 from both sides

`\begin{gathered} 63.7+y-63.7=-14.7-63.7 \\ y=-78.4 \end{gathered}`

Hence the value of y is -78.4