3x=12 3x/3=12/3 x=4
3x+4 = 2x-3 3x-2x = -3-4 x = -7
x=4 x=4
12/3 = 4
You don't, unless you know either the value of x or what the expression equals.
2y-3x=4
3x=12 3x/3=12/3 x=4
3x + 4= 7 3x= 7-4 3x/3 = 3/3 x=1
3x+4 = 2x-3 3x-2x = -3-4 x = -7
3x+4=10 To solve: 3x+4=10 3x=6 x=2
3x - 2 = 2x + 4 3x - 2x = 4 + 2 x = 6
x=4 x=4
3x + 2x = 5x. 5x= (-4) X = (-4)/5 x= -0.8
x = 6
12/3 = 4
4+3x-27=-12 To solve it... 3x= -12-4+27 3x= 11 x= 11/3 x= 3.666
You don't, unless you know either the value of x or what the expression equals.