Question

Nine added to thrice a whole number gives 54 find the number​

Answer 1

Step-by-step explanation:

step 1 - let the whole number be x.

step 2- 9+3x=54

step3 - 3x=54-9

step4- 3x=45

step5- x=45/3

Answer. - x=15

Answer 2

Let the whole number be x

Given,

Sum = 54

According to question,

$\implies9+3x=54\\\\\implies 3x=54-9\\\\\implies 3x=45\\\\\implies x=\dfrac{45}{3}\\\\\implies x=\boxed{\bold{15\:answer}}}\\\\\\Verify:9+3x=54\\\\We\:have\:value\:of\:x=15\\\\Put\:15\:at\:the\:place\:of\:x\\\\9+3\times15=54\\\\9+45=54\\\\54=54\\\\\boxed{L.H.S=R.H.S}\\\\Hence\:it\:is\:verified.$