Answer:
I did these 4 years ago they don't matter and you won't ever use them
you would add 3y+5y and get 8y=-20
then the slope would be 8/1 and your y-intercept would be -20
Answer:
x=23.5 + -0.5y
Step-by-step explanation:
Simplifying
2x + y = 47
Solving
2x + y = 47
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-1y' to each side of the equation.
2x + y + -1y = 47 + -1y
Combine like terms: y + -1y = 0
2x + 0 = 47 + -1y
2x = 47 + -1y
Divide each side by '2'.
x = 23.5 + -0.5y
Simplifying
x = 23.5 + -0.5y