Slope intercepts do.
Linear equations are straight lines, not curves.
Solution sets are for inequalities.
Linear equations never have a squared value, that would make it exponential.
The answer is attached above. I hope this helps!
It looks like 19 would be.
I don't know any slick way to find it, other than just slugging it out.
Answer:
y=2
x=3
Step-by-step explanation:
make x - y = 1 into x= y + 1
put that wherever x is in the other equation
so y + 1 + 2y =7. then combine like terms into 3y =6. then divide 6 by 3 so you get y = 2
then substitute 2 into the y in the equation x - y = 1 and you get x = 3
