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5 votes
Y - 7.8= 5.5 I got 2.9 but I want to be sure I understand and took the right steps

User Kev Xlre
by
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1 Answer

4 votes

Given the equation:


y-7.8=5.5

You need to solve for "y" in order to find its value. In this case, you need to apply the Addition Property of Equality, which states that, if:


a=b

Then:


a+c=b+c

Therefore, you need to add 7.8 to both sides of the equation in order to solve for "y":


\begin{gathered} y-7.8+(7.8)=5.5+(7.8) \\ y=13.3 \end{gathered}

Hence, the answer is:


y=13.3

User Walter Northwoods
by
8.9k points

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