6. Subtract the following expressions.
(a) x + y - 3z from 2x – 7y + 212
(b) 2a - 3b - abc from c + 3a + 31b - abc
(c) - xyz + y from x + y + z
(d) 5b + 5a - c from x – b + a + c - y
(e) 7x + 8y – xyz from 8x – 7y + 3xyz
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Step-by-step explanation:
a)2x-7y+212-x-y+3z
=2x-x-7y-y+3z+212
=x-8y+3z+212
b)c+3a+31b-abc-2a+3b+abc
=c+3a-2a+31b+3b
=c+a+34b
c)x+y+z-y+xyz
=x+z+xyz
d)x-b+a+c-y-5b-5a+c
=x-6b-4a+2c+y
=e)8x-7y+3xyz-7x-8y+xyz
=x-15y+4xyz
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