Question

An algebraic expression for the perimeter of a rectangle with a length of 4x and a width of 3x

Answer 1

So the first step would be to take the formula for perimeter:
P = 2l + 2w

Then multiply 2 times each term:
So you have 2(4x)= 8x
Then 2(3x)= 6x

Answer: the algebraic expression for the perimeter of the rectangle is 8x+6x