3x - y = 12 is the same as 3x - 12 = y, or y = 3x - 12.
y = 3x + y => x = 0then y = x - 9 => y = 0 - 9 = -9.
y = -1x/2 3x + 6y = 0 -3x -3x __________ 6y = 0 - 3x --- -------- 6 6 y= -3x/6 y= -1x/2
If you mean: y = 3x+1 then the value of y will equal 10
y = 3x 3x + 4y = 30 3x + 4(3x) = 30 3x + 12x = 30 15x = 30 x = 2 y = 3x y = 3(2) y = 6 (2, 6)
Well, if 3x equals 12, then x equals 4. And if y equals 3x, then y equals 3 times 4, which is 12. So, y equals 12. Math can be a piece of cake when you break it down like that!
-9
3x - y = 12 is the same as 3x - 12 = y, or y = 3x - 12.
x=2 y=1.5
y = 15 (by transitivity)
y-3x+6y=12 7y=3x+12 y=3x/7 +12/7
Point slope equation: Y=3X+12
15
y=3x+12
y = 3x + y => x = 0then y = x - 9 => y = 0 - 9 = -9.
12
3x + 2y = 12 ie 2y = 12 - 3x so y = 6 - 3x/2