Best Answer

subtract x from both sides

divide each term by 2.

y=-1/2 x+6

Q: How do you isolate y in x plus 2y equals 12?

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4y+4 = 2y+12 4y-2y = 12-4 2y = 8 y = 4

-2

Both of them are equations!The solution is (x, y) = (2, 1).

2x+y=-12-4x-2y=30 x=-y/2+30, you plug this into -12-4x-2y=30 and get -12+2y-120-2y=30 which gives 2y-2y=162. This is not possible, so the equation is unsolvable.

4

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4y+4 = 2y+12 4y-2y = 12-4 2y = 8 y = 4

-2

Both of them are equations!The solution is (x, y) = (2, 1).

what is the slope of the line that has the equation 4x+2y=12?

2x+y=-12-4x-2y=30 x=-y/2+30, you plug this into -12-4x-2y=30 and get -12+2y-120-2y=30 which gives 2y-2y=162. This is not possible, so the equation is unsolvable.

-65

4

Y= 1/4.

4y + 4 = 2y + 12Subtract 2y from each side of the equation:2y + 4 = 12Subtract 4 from each side:2y = 8Divide each side by 2:y = 4

(12, 1)

If 3y = 12, 2y = 8

x = -8, y = 10