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the equation is k+7 over x+1 equals 5 over 2if k=3 in the equation and x>0, what is the value of x?

1 Answer

3 votes

Answer

x = 3

Step-by-step explanation

The equation is given as


(k+7)/(x+1)=(5)/(2)

If k = 3, then we are asked to solve for x.


\begin{gathered} (3+7)/(x+1)=(5)/(2) \\ (10)/(x+1)=(5)/(2) \\ \text{Cross multiply} \\ 5(x+1)=2*10 \\ 5x+5=20 \\ \text{Subtract 5 from both sides} \\ 5x+5-5=20-5 \\ 5x=15 \\ \text{Divide both sides by 5} \\ (5x)/(5)=(15)/(5) \\ x=3 \end{gathered}

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User AttilaTheFun
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