Question

Simlify 7y(3x - 5z)

1. 21xy - 35yz
2. 73xy - 75yz
3. 21xy - 5z
4. 3x - 35yz

Answer 1

Assignment:
`\bold{Simplify \ Equation: \ 7y\left(3x-5z\right)}`

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Answer:
`\boxed{\bold{21yx-35yz}}`

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Explanation:
`\downarrow\downarrow\downarrow`

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[ Step One ] Apply Distributive Law

Note:
`\bold{Distribute \ Law: \ a\left(b-c\right)=ab-ac}`

`\bold{a=7y,\:b=3x,\:c=5z}`

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`\bold{7y\cdot \:3x-7y\cdot \:5z}`

[ Step Two ] Simplify
`\bold{7y\cdot \:3x-7y\cdot \:5z}`

`\bold{7\cdot \:3yx-7\cdot \:5yz}`

[ Step Three ] Simplify
`\bold{7\cdot \:3yx-7\cdot \:5yz}`

`\bold{21yx-35yz}`

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`\bold{\rightarrow Mordancy \leftarrow}`

Answer 2

the answer to the question is 1

21xy-35yz