1/2x+2/3=1/8x-3/2
Collect the "x" terms on one side and the constants on the other. You will need a common denominator when combining terms.
The next step would be
(3/8) x = -13/6
Then multiply both sides by 8/3, to get just "x" on one side.
The next step would be
(3/8) x = -13/6
Then multiply both sides by 8/3, to get just "x" on one side.