y = 12
12
y-3x+6y=12 7y=3x+12 y=3x/7 +12/7
x = 11/7 and y = 12/7
y=10/7
x=0 and y=12\7
-15 = y/7(x both sides by 7)-105 = y
(y-5)/4 = 7 y-5 = 28 y = 33
-5
x - y = 5 + 2x + y = 7 => 3x + 0 = 12 => 3x = 12 => 3x/3 = 12/3 => x=4 x-y=5 2x+y=7 =>4-y=5 =>2(4)+y=7 =>y=4-5 =>8+y=7 =>y=-1 =>y=-1 So, the answer would be x=4 and y=-1
12
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!