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Which inverse operation is needed to isolate the variable in the equation r + 8.9 = 17.4?
Group of answer choices

Add 8.9 to both sides.

Subtract 8.9 from both sides.

Add 17.4 to both sides.

Subtract 17.4 from both side

Respuesta :

allisonemmasu8

Answer:

Subtract 8.9 from both sides.

Step-by-step explanation:

When isolating variables, we need to change the parity of the number or value we are taking away. If we subtract 8.9 from both sides, we will get r=8.5.

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