What is this answer to the question 3x+16=5x. i need answering this so if you know how to do problems like this amos @atb_7072

The area of a rectangle is 15+5y square feet. which of the following expressions could be the length of the sides of the rectangle, in feet a. 5 and 3y b. 5 and 3+y c. 5 and 5+y d. 3 and 5+3y

You are designing a rectangular pet pen for your new baby puppy. you have 30 feet of fencing you would like the fencing to be 6 1/3 feet longer than the width

X+y=-4 x-y=2 use elimination with adding and subtraction