Answer:
x = 2/3
Explanation:
7/12 - x + 3/4 = 2/3
The common denominator is 12
3/4 *3/3 = 9/12
2/3 *4/4 = 8/12
7/12 - x + 9/12 = 8/12
Combine like terms
16/12 -x = 8/12
Subtract 16/12 from each side
12/16 -16/12 -x = 8/12-16/12
-x = -8/12
Multiply by -1
-1*(-x) = -1*(-8/12)
x = 8/12
Divide the top and bottom by 4
x = 2/3