Question

Solve the equation for y. Then find the value of y for each value of x.
3x-7y=13; x= -3, 0, 3

Answer 1

-3.14285,-1.857,-.5714

Explanation:

subtract 3x from both sides

divide -7 from both sides

multiply each value of the given x by (3/7) then add it to (-13/7)

Answer 2

y= (13-3x)/-7 answers for x: -2 2/7, -1 6/7, -1 3/7

Explanation:

3x-7y=13;

to start we wanna get y alone so we gonna get rid of x

3x-7y=13

-3x =-3x

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-7x=13-3x

then we wanna get rid of the -7 in front

-7y=13-3x

/-7 /-7

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y= (13-3x)/-7

then substitute the x values in

(13-(-3))/-7=16/-7=-2 2/7

13-(0)/-7=13/-7=-1 6/7

13-(3)/-7= 10/-7=-1 3/7