The difference between 7 and the product of 3x is 23
the product of 3x: 3x
The difference between 7.... : 3x - 7
is 23: = 23
3x - 7 = 23
Isolate the x. Note the equal sign. What you do to one side, you do to the other. Do the opposite of PEMDAS
First, add 7 to both sides
3x - 7 (+7) = 23 (+7)
3x = 30
Next, to isolate the x, divide 3 from both sides
3x/3 = 30/3
x = 30/3
x = 10
10 is your variable answer
hope this helps