How to figúrate out if x makes the equation true

Mathematics

2 answers:

marissa [1.9K]2 years ago

7 0

You plug in the number for x and if it is equal to the solution then it is correct

fomenos2 years ago

7 0

Answer:

Someone already explained this and their right but I wanted to add an example.

Lets say you have the equation 4x+3=19.

You solve it by subtracting three from both sides to isolate x which gives you 4x=16 and dividing both sides by 4 to get you an answer of 4.

Now, you know x=4 but you're not completely sure so you can check it.

Substitute the known value of x into the original equation and check to see if both sides equal.

4(4)+3=19

16+3=19

19=19

This checks out so your answer is correct.

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