Question

When solving the equation 27.75n +5.50=144.25, whatg can you do to get 27.75n by itself on one side of the equation? What is the result?

Answer 1

Since 5.50 is being added to 27.75n, you need to undo the addition.
Subtraction is the opposite operation to addition.
Subtract 5.50 from both sides.

27.75n + 5.50 = 144.25
- 5.50 -5.50
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27.75n = 138.75