Question

Please help me on this question

5(2y-3x)+7(4x-5y+3)

Answer 1

`13x-25y+21`

Explanation:

`\longmapsto`
`5(2y-3x)+7(4x-5y+3)`

Use the distributive property to multiply 5 by 2y-3x:

`\longmapsto`
`10y-15x+7\left(4x-5y+3\right)`

Use the distributive property to multiply 7 by 4x-5y+3:

`\longmapsto`
`10y-15x+28x-35y+21`

Combine like terms: -15x and 28x= 13x, and Combine 10y and -35y =

-25y:

`\longmapsto`
`-25y+13x+21`

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