14x-10y-12xy-13+(-7x) -10y+8xy
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Answer : 7x-20y-4xy-13
Step-by-step explanation :
14x-10y-12xy-13-7x-10y+8xy
=14x-7x-10y-10y-12xy+8xy-13
=7x-20y-4xy-13
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