Question

-x + 4y when x = -4/5 and y = 1/3

Answer 1

we have the expression

`-x+4y`

Evaluate for x=-4/5 and y=1/3

substitute the values of x and y in the given expression

`\begin{gathered} -(-(4)/(5))+4((1)/(3)) \\ (4)/(5)+(4)/(3) \\ (3\cdot4+5\cdot4)/(15) \\ (32)/(15) \end{gathered}`

the answer is 32/15