x - 7 - 9 = -3x - 16 = -3x = 13
3x = (96-75) 3x = 21So X = 7
3x=96-75 3x=21 x=7
x=7
7
3x + 4= 7 3x= 7-4 3x/3 = 3/3 x=1
4x+7-3x = 15 4x-3x = 15-7 x = 8
y= -4x-7 y=3x 3x= -4x-7 3x+4x=7 7x=7 x=1
Solve for x. 3x + 3 = x + 7 2x + 3 = 7 2x = 4 x = 2 Check it. 6 + 3 = 2 + 7 It checks.
3x = 7 - 4x 3x + 4x = 7 - 4x + 4x 7x = 7 7x/7 = 7/7 x = 1
Assuming the question is "solve for x", the answer is x=5
First you simplify: 3x=21 Then you divide both sides by 3: x=7