Answer:
=7x-[-3x]-5x-[-x]-[-2x]
=7x+3x-5x+x+2x
=10x-5x+3x
=5x+3x
=8x
refer to the attachment
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Answer:
=7x-[-3x]-5x-[-x]-[-2x]
=7x+3x-5x+x+2x
=10x-5x+3x
=5x+3x
=8x
refer to the attachment