Question

Record using algebra.

If we double the number that is 2 less than x, we will get 50.

Answer 1

2(x -2) = 50

Explanation:

The number that is 2 less than x is (x-2). Double that value is 2(x-2). When you say that doubled value will give 50, you mean it is equal to 50:

2(x -2) = 50

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The solution is found by dividing by 2, then adding 2.

x -2 = 25 . . . . equation divided by 2*

x = 27 . . . . . . 2 added to both sides of the equation*

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* Whatever you do to one side of the equation must also be done to the other side. That is how the sides remain equal.