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The fifth grade elementary school mathematics solves the equation.
6x= twelve/seven/four/five x= eight.

Solution X= twelve sevenths times one sixth solution: X= eight times five fourths X= two sevenths X = ten.

Two fifths x= 1 six sevenths x= three fifths.

Solution X= 1 times 5/2 solution: X= 3/5 times 7/6 X= 7/ 10.