Question

Exaluale each using the value given28) 2191 - 10v): se r--10, and 1= -5UND28

Answer 1

The value of the expression is;

`-80`

Step-by-step explanation:

Given the expression;

`2(9x-10y)`

we want to evaluate the value of the expression at;

`\begin{gathered} x=-10 \\ y=-5 \end{gathered}`

substituting the values into the expression:

`\begin{gathered} 2(9x-10y)=2(9(-10)-10(-5)) \\ =2(-90+50) \\ =2(-40) \\ =-80 \end{gathered}`

Therefore, the value of the expression is;

`-80`