it means the same as:
2a-4=-2a+4 or 2a-4=-(-2a+4)
4a=8 or 0=0
a=2
but notice that the expressions 2a-4 and -2a+4 have the same value when
so that is our solution
2a-4=-2a+4 or 2a-4=-(-2a+4)
4a=8 or 0=0
a=2
but notice that the expressions 2a-4 and -2a+4 have the same value when
so that is our solution
No comments:
Post a Comment