When i double my number and then subtract the result from five , i get negative one. what is my number? write and solve an equation

3

Step-by-step explanation:

5-2x=-1

(x is your number)

5-5=0

-1-5=-6

-2x=-6

-2x/-2=x

-6/-2=3

x=3

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

the answers might not be correct use at own risk