First you had to add by seven from both sides of equation form.

Then simplify by equation.

Next, you multiply by two from both sides of equation form.

And finally, simplify by equation.





Final answer: 
Hope this helps!
And thank you for posting your question at here on brainly, and have a great day.
-Charlie
Answer:
Undefined
Step-by-step explanation:
y=2x+3 cant equal y=4x+3
If it is perpendicular then the slope of it will be:

y = 1/3 x + b
-1 = (1/3)(3) + b
-1 = 1 + b
b = -2
The equation is:
I can you be a little bit clear I don’t really understand the question.
Answer:
Sorry i have no idea hahha
Step-by-step explanation:
Good luck