equivalent to 3x -6 = -9; so 3x = -9 + 6; so 3x = -3 so x = -1. Check: -6 + (3 * -1) = -6 + (-3) = -9 QED
Chat with our AI personalities
X equals 9.
3x+9/2=9 3x=9-9/2 3x=9/2 x=9/6 x=3/2
3x-6y=9 -3x -3x -6y=9-3x __ ____ -6 -6 y=9-3x ____ -6
3x-y = 9 2x+y = 6 Add both equations together: 5x = 15 x = 3 and y = 0
2x + 6 = -9 + 5x Subtract 2x from both sides: 6 = -9 + 3x Add 9 to both sides: 15 = 3x Divide both sides by 3: 5 = x