Answer:

Step-by-step explanation:
Given , value of x = 12
To find : Value of the given expression
Given expression = 
plug the value of x

Subtract 7 from 12

Hope I helped!
Best regards! :D
Answer: did you ever get the answer ?
Step-by-step explanation:
Step-by-step explanation:
We just subsitue 3 for x and -4 for y, so we get

So




Answer:
2x-1
Step-by-step explanation:
Just solve this way.
(2/3)x-(1/3)=(1/3)y.
Now find y in terms of x.