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OpenStudy (anonymous):
4(6 + 7) = 4 • 6 + x • 7
OpenStudy (anonymous):
4(6 + 7) = 4 • 6 + x • 7
OpenStudy (anonymous):
b
OpenStudy (anonymous):
What is the value of x?
4(6 + 7) = 4 • 6 + x • 7
x =
OpenStudy (anonymous):
4(6 + 7) = 4 • 6 + x • 7
use distributive property
4*6 + 4*7 = 4*6+x*7
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OpenStudy (anonymous):
What is the value of x?
OpenStudy (anonymous):
Then, 4*6 + 7x
OpenStudy (anonymous):
It's extremely simple, you have to at least try..
OpenStudy (anonymous):
24 + 7x
OpenStudy (anonymous):
31
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OpenStudy (anonymous):
?
OpenStudy (anonymous):
4*6 + 4*7 = 4*6+x*7
| | | |
24 + 28 = 24 + 7x
OpenStudy (anonymous):
83?
OpenStudy (anonymous):
You can't add a number with a variable attached to it. You'd have to isolate it..
Add 24 & 28. Then subtract 24 from the right side to the left. So it should look like this now.
28 = 7x
OpenStudy (anonymous):
No no, 24+28 = 52.
So, 52 = 24 + 7x
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OpenStudy (anonymous):
Then subtract the 24.
52-24 = 24-24 + 7x
28= 7x
OpenStudy (anonymous):
Then, isolate the variable by dividing 7 by both sides.
28/7 = 7x/7
? = x
OpenStudy (anonymous):
4
OpenStudy (anonymous):
Yes!
OpenStudy (anonymous):
so x=4
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