Question

in a rectangle , adjecent sides measure x + 2 and 2x -3 and perimeter is 40 units . find x​

Answer 1

$perimeter \: of \: rectangle = 2 ( l+b )$

$2(x + 2 + 2x - 3) = 40$

$3x - 1 = 20$

$3x = 20 + 1$

$3x = 21$

$x = \frac{21}{3}$

$x = 7$