If 10 be added to four times a certain number, the result is 5 less than five times the number. Find the number.
Linear Eqns One Variable
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Question

If 10 be added to four times a certain number, the result is 5 less than five times the number. Find the number.

KnowledgeBoat · Accepted Answer

Let the required number be x. "10 added to four times the number" = 4x + 10 "5 less than five times the number" = 5x - 5 According to the given condition we have: 4x + 10 = 5x - 5 ⇒ 4x - 5x = - 5 - 10 [Transposing +10 to RHS and +5x to LHS] ⇒ -x = -15 ⇒ x = 15 Hence, the required number is 15.

Mathematics

If 10 be added to four times a certain number, the result is 5 less than five times the number. Find the number.

Linear Eqns One Variable

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