Question

for each problem,
a) create an equation to solve for x.
b) solve the equation from part a.

1. a triangle has side lengths of 15 centimeters, 11 centimeters, and 3.5x centimeters.

perimeter
the perimeter is 75 centimeters.
a) handwritten equation
b) handwritten solution

Explanation:

Step1: Sum sides for perimeter equation

$15 + 11 + 3.5x = 75$

Step2: Simplify left side sum

$26 + 3.5x = 75$

Step3: Isolate the variable term

$3.5x = 75 - 26$
$3.5x = 49$

Step4: Solve for x

$x = \frac{49}{3.5}$

Answer:

a) $15 + 11 + 3.5x = 75$
b) $x = 14$