Question

6х-8у при х=2/3 у=5/8

Answer 1

$6x-8y$ При $x=\frac{2}{3} \\ y=\frac{5}{8}$

$6*\frac{2}{3}-8*\frac{5}{8} =4-5=-1$

Answer 2

$\frac{6}{1} \times \frac{2}{3} - \frac{8}{1} \times \frac{5}{8} = - 1$

Answer 3

To evaluate the expression 6x - 8y when x = 2/3 and y = 5/8, we simply substitute these values into the expression and simplify:

6x - 8y = 6(2/3) - 8(5/8)

Now we can simplify each term:

6(2/3) = 4

8(5/8) = 5

So we have:

6x - 8y = 4 - 5 = -1

Therefore, when x = 2/3 and y = 5/8, the value of the expression 6x - 8y is -1.