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Write an expression that is equivalent to 7 - 3(4 - 2x) - 10x.Show your work

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Answer:

The expression:


7-3(4-2x)-10x\text{ }

is equivalent to:


4x-5

Step-by-step explanation:

We want to write an expression equivalent to:


7-3(4-2x)-10x

First of all, we remove the bracket in the expression by multiplying the number outside the bracket by each of the elements inside the bracket.


\begin{gathered} 7-(3*4)-(3*-2x)-10x \\ =7-12-(-6x)-10x \\ =7-12+6x-10x \end{gathered}

Next, perform the addition and subtraction operations


-5+4x

This can also be written as:


4x-5

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