2x = 17
then x = 8.5
2x+1=7
then x = 3
2x - 1 = 7
then x = 4
which is your problem
Chat with our AI personalities
(2x - 7)(x + 1)
y = 2x-5 4x-y = 7 => y = 4x-7 2x-5 = 4x-7 2x-4x = 5-7 -2x = -2 x = 1 Therefore by substituting: x = 1 and y = -3
3X - 1 = 2X + 6 => Bring the 2X to the left X - 1 = 6 => Bring the -1 to the right X = 7
2x - 7 = -1
you have to put either an equal sign or say that this equation "equals" something but if you are asking 8 - 2x = 7 well you move 8 to the other side so 8 -2x -8 = 7 - 8 -2x = -1 now you divide -2 on both sides x = 1/2