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X/2=40;20 is the given number a solution to the equation

User Misterben
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2 Answers

5 votes
20/2 = 10, so x/2=40 does not have the solution 20.

x/2 = 40 can be solved by mult. both sides of the eqn by 2: x = 80
User Nathan Wheeler
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Hi there!
x = 20 is NOT a solution to this equation.


(x)/(2) = 40
In this equation, when we want to find our value of x, we must multiply both sides of the equation by 2. In the current situation our variable x is divided by 2. Therefore, if we want to find its value, we must do the opposite of dividing, which is multiplying.

We end up with the following:

(x)/(2) * 2 = 40 * 2 \\ x = 80

Therefore, the only solution to this equation is x = 80 and we can now conclude that x = 20 is NOT a solution to this equation.

~ Hope this helps you!
User Roksana
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