Find the value for m?
21(m + n) + 21 = 21(-m + n) + 21	Choose the correct choice from the following.
A) 0	B) -1	C) 1	D) 2	E) 3
21m + 21n - 21 = -21m + 21n + 21   42m= 42 =&gt; m = 1   1
<result>C</result>
Find the value for m?
21(m + n) + 21 = 21(-m + n) + 21