若(-5a^2m-3×b^n+4)÷(3a^m+2×b^5)=-5/3a^4×b^2,求m÷n的值

若(-5a^2m-3×b^n+4)÷(3a^m+2×b^5)=-5/3a^4×b^2,求m÷n的值
若(-5a^2m-3×b^n+4)÷(3a^m+2×b^5)=-5/3a^4×b^2,求m÷n的值

若(-5a^2m-3×b^n+4)÷(3a^m+2×b^5)=-5/3a^4×b^2,求m÷n的值
(2m-3)-(m+2)=4
(n+4)-5=2
∴m=9
n=3
∴m÷n=9÷3=3