459,136 views
4 votes
4 votes
Solve the following equation for X 5x+7y=19 X= ?

User Knuckfubuck
by
2.7k points

1 Answer

17 votes
17 votes


x=(19-7y)/(5)

1) We can solve this equation for x, by doing the following algebraic manipulation:


\begin{gathered} 5x+7y=19 \\ \\ 5x+7y-7y=19-7y \\ \\ 5x=19-7y \\ \\ (5x)/(5)=(19)/(5)-(7y)/(5) \\ \\ x=-(7)/(5)y+(19)/(5) \\ \\ x=(19-7y)/(5) \end{gathered}

2) In this problem, we can't go any further than that. So, that is the answer.

User Robjam
by
2.9k points