What should be done to solve the equation?

x minus 17 = 11
Add 17 to both sides.
Add 17 to the left side and subtract 11 from the right side.
Add 17 to the left side and subtract 17 from the right side.
Add 11 to both sides.

Add 17 to both sides

Step-by-step explanation:

The opposite of subtract is to add.  What you do to one side, you do to the other.

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