Question

Calculate If 2x=8 find 5x+1

Answer 1

x = 4; 5x + 1 = 21

Step-by-step explanation

First, we have to find the value of x using the given equation,

`2x=8`

To do so, divide both sides by 2,

`\begin{gathered} (2x)/(2)=(8)/(2) \\ \\ x=4 \end{gathered}`

Now, with x = 4, replace it into the expression given to find its value,

`5x+1=5\cdot4+1=20+1=21`

Hence, the value of the expression is 21.