The equation is .
Apply addition property of equality: If a = b then a + c = b + c.
\ (Add 2 to each side)
(Apply additive inverse property:
)
(Apply additive identity property:
)
Find the least common denominator (LCD).
\Multiples of 1: 1,2,3,4,5,6,7,8,9.....
\Multiples of 2: 2,4,6,8,10,12.......
\The least common multiple of 1 and 2 is 2.
\Rewrite each fraction with a common denominator of 2.
\
(Multiply each side by 2)
(Cancel common terms)
Check:
\To check the solution substitute the value in original equation.
(Multiply:
)
Find the least common denominator (LCD).
\Multiples of 1: 1,2,3,4,5,6,7,8,9.....
\Multiples of 2: 2,4,6,8,10,12.......
\The least common multiple of 1 and 2 is 2.
\Rewrite each fraction with a common denominator of 2.
\ (Subtract:
)
The equality is true.
The value of .