M and n are integers. Select all the statements that are true if m and n are equal to each other M-n=n-m
0=m-n
M+(-n)=m-n
M+N=0

Which linear equations have an infinite number of solutions? check all that apply.  (x  –  3/7)  =  2/7(3/2x  –  9/14)8(x  +  2)  =  5x  –  1412.3x  –  18  =  3(–6  +  4.1x)(6x  +  10)  =  7(x  –  2)4.2x  –  3.5  =  2.1 (5x  +  8)

What are the exclude value of mn+3m

Factor the polynomial. b^2 + 4b + 4