The sum of two algebric expressions is 9yz+6zx+3y. If one expression is 4yz+9zx - 4y then other will a)5yz +15zx - y
b)5yz - 3zx+7y
c)5yz+15zx+7y
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correct ans. is option b]
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Answer:
a)5yz+15zx-y
Step-by-step explanation:
x+4yz+9zx-4y=9yz+6zx+3y
x=9yz+6zx+3y-4yz+9zx-4y
x=5yz+15zx-y
this is the answer
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