How to figúrate out if x makes the equation true
2 answers:
You plug in the number for x and if it is equal to the solution then it is correct
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.
You might be interested in
Answer:
5/11 or 45 percent, since there are 5 blue cards
Answer:
A. -25
Step-by-step explanation:
sana nakatulong :-)
Answer:
5(9b + 8)
Step-by-step explanation:
Rewrite 45 as 5 * 9
Rewrite 40 as 5 * 8
= 5 * 9b + 5 * 8
Factor out common term 5
=5 (9b + 8)
The answer is D) 12
If you need proof, just comment.
Answer:
-3x
Step-by-step explanation:
this is the answer I think