Question

46-a=41+2 , a-21=19-4 , a+32=68-3 ,53+a=56+3

Answer 1

46-a=41+2
46-a=43
a=46-43
a=3
 

a-21=19-4
a-21=15
a=15+21
a=36

a+32=68-3
a+32=65
a=65-32
a=33
 
53+a=56+3
53+a=59
a=59-53
a=6

Answer 2

46-a=41+2⇒46-a=43⇒46-43=a⇒a=3
a-21=19-4⇒a-21=15⇒a=21+15⇒a=36
a+32=68-3⇒a+32=65⇒a=65-32⇒a=33
53+a=56+3⇒53+a=59⇒a=59-53⇒a=6
Succes!