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15 votes
15 votes
Write an equation for the description. The sum of 18 and a number x is equal to 20.

User Yamile
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1 Answer

19 votes
19 votes

Let x and y be two numbers.

Given that the sum of the numbers is 18.


x+y=18

Given that the value of x=20.


\begin{gathered} x+y=18 \\ 20+y=18 \\ y=18-20 \\ y=-2 \end{gathered}

Thus, the value of y is -2.

User Krispet Krispet
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