add 2x-5y+3z,7x-3y-4z
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Answered by
1
=(2x +7x) +(-5y-3y)+(3z-4z)
=9x-8y-z
Answered by
0
Answer:
(2x-5y+3z) + (7x-3y-4z)
2x-5y+3z+7x-3y-4z
collect like terms
2x+7x-5y-3y+3z-4z
=9x-8y-z
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