Question

Solve for x or find x ​

Answer 1

X=4
And to prove it
8(4)-1=31

Answer 2

`\huge \purple{\tt{Answer:}}`

In a rectangle , opposite sides are equal in length .

So ,

`\sf {8x-1=31} \\\\ \implies \sf {8x=31+1=32} \\\\ \implies \sf{x={(32)/(8)}} \\\\ \implies \sf{x=4}`