Question

2x+3y=9 and 4x+6y=8 solve by substitution method

Answer 1

hey there here is your answer...

2x+3y=9..............eq(1)
4x+6y = 8............... eq(2)
we can observe that
$\frac{a1}{a2} = \frac{b1}{b2} \\ \frac{2}{4} = \frac{3}{6} = \frac{1}{2} \\ but \: not \: equal \: to \: \frac{c1}{c2} = \frac{9}{8}$

so therefore they are parallel lines hence they don't have solutions

hope it helps..