Question

The value of 3x – 6y for x= - 2 and y= 1/2 is​

Answer 1

Answer:

This is the answer.

Step-by-step explanation:

3x-6y

=3(-2)-6(1/2)

=-6-3

=-9

Answer 2

Step-by-step explanation:

The first step in solving by substitution is always solving for one of the variables. Since x in the second equation has coefficient

1 , we'll choose this variable to isolate.

x−2y=−8→x=2y−8

We now substitute this into the first equation.

3(2y−8)−6y=−12

6y−24−6y=−12

0y=12

This is true for no real value of y

Thanku!