Algebra 2 question pleaseee help?

Question

can anyone please help me solve this problem:

3y+6x=3

x-y= -7

its a your suppose to solve by using a graph and table

if you could please just show me by doing the steps that would heeelp alooot

thanx :)

Answer 1

x=3 y=-16

Answer 2

in the second equation you could change it to read x=y-7

then substitute it into the first equation

3y + 6(y-7) = 3

3y + 6y - 42 = 3

9y - 42 = 3

9y = 45

y = 5

and if y = 5 then x = y - 7, 5-7 or x = -2

Answer 3

first get them both into slope-intercept form (y=mx+b). then graph them. find the point where the two lines intersect, and that's your answer.

Answer 4

3(-1)= -3+6(1)=3

Answer 5

oh jeez....

Answer 6

y=-2x+1

and you can graph that by putting 1 on the y axis because it is the y-intercept and from the point (0,1) go down 2 and over to the right 1 (rise over run)...thats the graph and for the table put it as

x      y=-2x+1           y

2     y=-2(2)+1        -3

1     y=-2(1)+1        -1

0     y=-2(0)+1         1

-1    y=-2(-1)+1        3

-2    y=-2(-2)+1        5

Answer 7

umm...