Algebraic Techniques, SMB-014 MC

Which one of the following expressions is equivalent to `4 (3m-1)`?

`7m-1`
`12m-1`
`12m-4`
`8m`

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`C`

Show Worked Solution

`4 (3m-1)`

`= (4 xx 3m)-(4 xx 1)`

`= 12m-4`

`=>C`