-2(-3xy+2z)+3(-2xy-5x)=?

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-2(-3xy+2z)+3(-2xy-5x)=?
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-2(-3xy+2z)+3(-2xy-5x)=?
-2(-3xy+2z)+3(-2xy-5x)=?

-2(-3xy+2z)+3(-2xy-5x)=?
6xy-4z-6xy-15x=-4z-15x

-2(-3xy+2z)+3(-2xy-5x)
=6xy-4z-6xy-15x
=-4z-15x

-4z-15x

-2(-3xy+2z)+3(-2xy-5x)
=6xy-4z-6xy-15x
=-4z-15x

-2(-3xy+2z)+3(-2xy-5x)
=6xy-4z-6xy-15x
=-4z-15x