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3(x-4)

Q: Which expression is equivalent to 3x - 12?

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6

3x + 3x + 3x = 3* (3x) = 9x

It is an expression that is equivalent to -3x-19.

9

when you say 3x, you mean that there are 3 x's. Multiplication implies repeated addition, so three x's added is x+x+x, which equals 3x.

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6

3x-3y?

3x + 3x + 3x = 3* (3x) = 9x

It is an expression that is equivalent to -3x-19.

3x + 12 is an algebraic expression. An algebraic expression involves variables, constants or both.

9

The equivalent expression of 3x-9 plus 3x plus 5 is negative 4.

Radical (3x) = radical(x) * radical(3).

It is equivalent to 15x+10

It depends on what it is meant to be equivalent to!

2(3x + 4) = 6x + 8 3(x - 5) = 3x - 15 6x + 8 - 3x + 15 = 3x + 23

2(3x + 4) = 6x + 8 3(x - 5) = 3x - 15 6x + 8 - 3x + 15 = 3x + 23