tell whether the expressions in each pair are equivalent.
6m +1 and 1 . 6 + m
9y and 9 + y
mp + nq and + np
-(5 - 9) and 9 - 5
8 - 4c and - 8
3(5 + z) and 15 +z
6t - 4 and 2[(2 + 1)t - 2]
wwx . yz and v . w . zxy

Question

tell whether the expressions in each pair are equivalent.
6m +1 and 1 . 6 + m 
9y and 9 + y
mp + nq and + np
-(5 - 9) and 9 - 5
8 - 4c and - 8
3(5 + z) and 15 +z
6t - 4 and 2[(2 + 1)t - 2]
wwx . yz and v . w . zxy

danjs · Answer

6m + 1   = ?   1.6 + m

danjs · Answer

That first one is not equivalent, you can check by letting m be any number, for simplicity let m=0

6*0 +1 = 1.6 + 0
        1  = 1.6            FALSE

danjs · Answer

What about    9*y  = 9 + y              those the same?