Question

PROBLEM: Equivalent Expressions Create three different expressions that are each equal to 20. Each expression should include only these three numbers: 4. -2. and 10.

Answer 1

Given the numbers: 4, -2, and 10.​

We want to create three different expressions that are each equal to 20.

First Expression

`(4-2)*10=20`

Second Expression

`\begin{gathered} (4*10)+(-2*10) \\ =40+(-20) \\ =40-20 \\ =20 \end{gathered}`

Third Expression

`\begin{gathered} 10\lbrack4+(-2)\rbrack \\ =10\lbrack4-2\rbrack \\ =10*2 \\ =20 \end{gathered}`