Question

if 3x-y=10 and 3y=-2 find the value of x-y​

Answer 1

Answer:

34/9

Step-by-step explanation:

Given that 3y=-2

                   y=-2/3----------(i)

3x-y=10-----------(ii)

Subtitute (i) in (ii)

3x-(-2/3)=10

3x+2/3=10

by simple algebra you will get x=28/9

So by simple subtraction

x-y=28/9-(-2/3)

    =28/9+2/3=34/9

Answer 2

answer=22/9

3y=-2

y=-2/3

and

3x-y=10

3x=10+y

x=10/3+y/3

x=10/3+(-2/3)/3

x=10/3-2/9

x=28/9

now

x-y=28/9+2/3

=34/9