Question

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

Answer 1

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`