How many soultions does 5(x-3)+6=5x-9
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well, a carton has a dozen, namely 12 or the 100%, two were cracked.
if we know 12 is the 100%, what is 2 off of it in percentage?
Make bottom number same
ok, so remember
(a-b)(a+b)=a²+b²
so
to get from (y-x) to (y²-x²), multiply 2nd fraction by (y+x)
so multiply 2nd fraction by (y+x)/(y+x)
=
=
ok, so remember
(a-b)(a+b)=a²+b²
so
to get from (y-x) to (y²-x²), multiply 2nd fraction by (y+x)
so multiply 2nd fraction by (y+x)/(y+x)