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Which expressions are equivalent to [tex]8.9x + 6.2 + 8.7[/tex]? Check all that apply.

A. [tex]9x + 6 + 9[/tex]
B. [tex]8.9 + 6.2 + 8.7x[/tex]
C. [tex]8.9x + 8.7 + 6.2[/tex]
D. [tex]8.7 + 8.9x + 6.2[/tex]
E. [tex]6.2 + 8.7 + 8.9[/tex]
F. [tex]6.2 + 8.7 + 8.9x[/tex]
G. [tex]8.9 + 6.2x + 8.7[/tex]

Answer :

Sure, let's solve this step by step.

We start with the given expression:
[tex]\[ 8.9x + 6.2 + 8.7 \][/tex]

We need to identify which of the provided expressions are equivalent to this expression.

Let's analyze each option:

1. [tex]\( 9x + 6 + 9 \)[/tex]
- This is not equivalent because the coefficients and constants are different. The given expression has coefficients 8.9 and constants 6.2 and 8.7, not 9 and 6.

2. [tex]\( 8.9 + 6.2 + 8.7x \)[/tex]
- This is not equivalent because the term 8.9 is not multiplied by [tex]\(x\)[/tex]. The given expression has [tex]\(8.9x\)[/tex].

3. [tex]\( 8.9x + 8.7 + 6.2 \)[/tex]
- This is equivalent. The terms are just rearranged, but the values and their respective operations (addition in this case) are the same.

4. [tex]\( 8.7 + 8.9x + 6.2 \)[/tex]
- This is equivalent. Again, the order of the terms is different, but it includes all the original terms with their correct coefficients and constants.

5. [tex]\( 6.2 + 8.7 + 8.9 \)[/tex]
- This is not equivalent because [tex]\( 8.9 \)[/tex] is a constant here, not multiplied by [tex]\( x \)[/tex].

6. [tex]\( 6.2 + 8.7 + 8.9x \)[/tex]
- This is equivalent. The order is different, but the terms and their coefficients are correct.

7. [tex]\( 8.9 + 6.2x + 8.7 \)[/tex]
- This is not equivalent because [tex]\( 6.2 \)[/tex] is the coefficient of [tex]\( x \)[/tex] here, instead of [tex]\( 8.9 \)[/tex].

The equivalent expressions are therefore:
[tex]\[ 8.9x + 8.7 + 6.2 \][/tex]
[tex]\[ 8.7 + 8.9x + 6.2 \][/tex]
[tex]\[ 6.2 + 8.7 + 8.9x \][/tex]

So, the correct options are:
[tex]\[ \boxed{3, 4, 6} \][/tex]

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