The equation is
(Subtract
from each side)
(Commutative property:
)
(Additive inverse property:
)
(Additive identity property:
)
Find the Least Common Denominator (LCD) of improper fractionand
.
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.
\ (Add:
)
\
Check:
\Substitutive the value on original equation
\
(Subtract:
)
\
The solution .