Question

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Sum of two numbers is 81. One is twice the other. (a) Name the method used to solve the equation when number is changed(shifted)from one side of the equation to another.​​

Answer 1

Answer:

We are given that one number is twice the other.

If the smaller number is x, then the other number is 2x.

We are given that sum of two numbers is 81.

So, the equation will be x+2x=81

Now, solve the equation for x.

⇒ x+2x=81

⇒ 3x=81

⇒ x=

3

81

⇒ x=27

Hence, the solution of the equation is 27.

Explanation:

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