Question

which of following describes the solution to the equation below 10x +20 = -30+10? a x=1 3/4 b infinite real solution c exactly one real solution x= 11/2 d no real solutions ?

Answer 1

The given equation is,

`\begin{gathered} 10x+20=-30+10 \\ \end{gathered}`

On solving we get,

`\begin{gathered} 10x=-20-20 \\ 10x=-40 \\ x=-(40)/(10)=-4 \end{gathered}`

Thus the solution is, x = -4.

Thus, we can say that the system has exactly one real solution.

Option c is the correct answer.