Rectangle poster is 3 times as long as wide and perimeter is 24 inches

The length is 9 inches and the width is 3 inches.

Step-by-step explanation:

Rectangular poster is 3 times as long as it is wide.

Its perimeter is 24 inches.

Let its width be x inches;

Its length will be equal to 3x inches.

Perimeter is given by 2(length + width)

2(3x + x) = 24 inches

8x = 24 inches , x = 3 inches

So the width of the poster is 3 inches and the length is 9 inches.

step-by-step explanation:

let's solve your equation step-by-step.

24−3x=−27

step 1: simplify both sides of the equation.

24−3x=−27

24+−3x=−27

−3x+24=−27

step 2: subtract 24 from both sides.

−3x+24−24=−27−24

−3x=−51

step 3: divide both sides by -3.

−3x

−3

=

−51

−3

x=17

answer:

x=17

step-by-step explanation:

mark brainliest and have a great day!