Answer:
Infinitely many solutions
Step-by-step explanation:
[tex]\left\{\begin{array}{ccc}4x-6y=18&\text{divide both sides by 2}\\-10x+15y=-45&\text{divide both sides by 5}\end{array}\right\\\\\underline{+\left\{\begin{array}{ccc}2x-3y=9\\-2x+3y=-9\end{array}\right}\\.\qquad\qquad0=0\qquad TRUE[/tex]
