Solve for x: (x+4)/3= 2
x = −2
x = 2
x = 2/3
x = -10/3
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OpenStudy (goldphenoix):
\[\large \large \frac{ x+4 }{ 3 } =2\] What do you think you do first?
OpenStudy (anonymous):
divide
OpenStudy (goldphenoix):
Hmm. What do we divide?
OpenStudy (anonymous):
the x value
OpenStudy (goldphenoix):
So what do you get?
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OpenStudy (anonymous):
-2
OpenStudy (goldphenoix):
I don't get what you did. o.o.
So what did you do?
OpenStudy (anonymous):
@GoldPhenoix i think you might be leading him in the wrong direction
OpenStudy (goldphenoix):
I want to see his mistake first. :)
So I can help him fix his mistake.
OpenStudy (goldphenoix):
This is how you find x, you want to multiply 3 and 2. Why? Well because it would be easier to find x, and it's possible.
So 3*2 = 6.
So your equation should look like: \[\large \large x + 4 = 6\]
Make sense?
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OpenStudy (anonymous):
so its 2
OpenStudy (goldphenoix):
Yes. X is equal to 2. How to make sure if it's 2?
Well plug it in.\[\large \large \frac{ 2+4 }{ 3 } =2\] The numerator becomes 6.
6/3 = 2.
Yes, x = 2. (Once again)
I hope this help!
OpenStudy (goldphenoix):
When you have an equation with fraction, and you want to solve for x. You want to multiply the base by the denominator. Alright?