Solve: startfraction 2 over 3 endfraction minus 4 x plus startfraction 7 over 2 endfraction equals negative 9 x plus startfraction 5 over 6. endfraction. â€"" 4x = â€""9x x = x equals negative startfraction 3 over 2 endfraction. x = x equals negative startfraction 2 over 3 endfraction. x = x equals startfraction 2 over 3 endfraction. x = x equals startfraction 3 over 2 endfraction.