Which inverse operation is needed to isolate the variable in the equation

r
+
8
.
9
=
17
.
4
?

A. Add 8.9 to both sides.

B. Subtract 8.9 from both sides.

C. Add 17.4 to both sides.

D. Subtract 17.4 from both sides.

1 answer

B. Subtract 8.9 from both sides.
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