subtract (-3x-y ) from x-3y
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Answer:
x-3y-(-3x-y)
x-3y+3x+y
x+3x-3y+y
4x-2y
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(x-3y) - (-3x-y)
x-3y + 3x+y (Sign of second term will change we have a -ve sign before the bracket)
Arranging like terms together
x+3x-3y+y
4x-2y
x-3y + 3x+y (Sign of second term will change we have a -ve sign before the bracket)
Arranging like terms together
x+3x-3y+y
4x-2y
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