Question

the difference between two number is 18 if their sum 86 what are the number

Answer 1

Let the numbers be x and y

∴ x-y = 18 and x+y = 86

Adding two equations, we get 2x = 104.

∴ x = 52 and y = 34.

Answer 2

Let the two number be 'x' and 'y'

Given That,

x + y = 86 ........ ( 1 )

And

x - y = 18 ......... ( 2 )

By Using Elimination Method In Linear Equations in Two Variables , We can find the value of X and Y

x + y = 86

x - y = 18

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2x = 104

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Therefore , x = 104 / 2 = 52

Substituting the value of 'x' in Equation (1)

52 + y = 86

y = 86 - 52 = 34

Hence, the two numbers are 52 and 34