The equation is .

(Apply subtraction property of equality: If *a* = *b*, then )

(Subtract from each side)

(Apply commutative property of addition: )

(Apply additive inverse property: )

(Apply additive identity property: )

Find the Least Common Denominator (LCD) of improper fraction and .

Find the Least Common Multiple of 3 and 7.

Multiples of 3:

Multiples of 7:

The least common multiple of 3 and 7 is 21, the LCD is 21.

Rewrite each fraction using the least common denominator (LCD).

and

Rewrite the subtract using the LCD.

(Subtract: )

__Check:__

To check the solution substitute the value in original equation.

(Subtract: )

The equality is true.

The value of .

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