Answer:
y=9
Step-by-step explanation:
Isolate the variable by dividing each side by factors that dont contain the variables
move variable to left side and change its sign
42-7y+3y=6 collect like terms
-7y +3y=6-42
-4y=6-42
-4y=-36 divide both sides of the equation by -4
y=9
hope that helps :)
I think the ones that would apply to this would be a. b. and c.
Since they are on the same line the slope doesn't change!
Hope I helped :)
Answer:

Step-by-step explanation:
From the y-intercept og
, travel five unit south over two unit east. Doing so will get yoy to the endpoint of
, which tells you that the rate of change is
, Therefore, your equation, in Solpe Intercept Form , is 

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2.79 x 10 ^ -8
let me know if u have any other questions !!