Question

the figure shown has a total area of 420 m². which equation can be used to find the value of x? 420 = 25·x + 15·3x what is the value of x? x = 420 = 25·x + 15·3x an error has occurred. please enter a number. (the figure has 25 m, x m, 3x m, 15 m as labeled dimensions)

Explanation:

Step1: Simplify the equation terms

$420 = 25x + 15 \cdot 3x$
$420 = 25x + 45x$

Step2: Combine like terms

$420 = (25+45)x$
$420 = 70x$

Step3: Solve for x

$x = \frac{420}{70}$

Answer:

$x = 6$