Maath
posted by Courtney .
Solve the equation for the indicated variable.
4x3a(10x+7a)=0 solve for x

I will be happy to critique your work.

This is all I know how to do & don't know if it's even right.
4x3a(10x+7a)=0 solve for x
4x3a10x7a=0
6x10a=0