Posted by somiya on .
for which values of a and b does the following pair of linear equation have an infinite number of solution ? 2x+3y=7 (ab)x+(a+b)y=3a+b2

algebra 
Steve,
ab=2
a+b=3
so
a=5/2
b=1/2
that gives
2x+3y=6
WAK! No solutions, rather than an infinite number. Is there a typo somewhere?