plz solve it faasssttt
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let the required no. be m then
=>(xy-3yz+4zx)+m=4xy-3xz+4yz+7
=>m=(4xy-3xz+4yz+7)-(xy-3yz+4zx)
=>m=4xy-3xz+4yz+7-xy+3yz-4zx
=>m=3xy-7zx+7yz+=yz
this is your answer. pls mark me brainliest
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