Question

if x=(5/7)-5*(7/5)-7 then find value of 2x+1​

Answer 1

Answer:

$-\frac{179}{7}$

Step-by-step explanation:

Given,

$x=(\frac{5}{7})-5*(\frac{7}{5})-7$

Using BIDMAS / BODMAS, this reduces to,

$x=(\frac{5}{7})-7-7= (\frac{5}{7})-14=-\frac{93}{7}$

So, 2x + 1 will be,

$2*(-\frac{93}{7})+1=(-\frac{186}{7})+1=-\frac{179}{7}$

Answer 2

Answer: Evaluate the expression 2x+1 when x=9:  

2x + 1 = 2(9) + 1 = 18 + 1 = 19  

Answer: 19

Step-by-step explanation: