Mathematics
7 Online
OpenStudy (luckycharms988):
Solve.
4x - 6 = -3x + 8
X = ?
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OpenStudy (anonymous):
U solve it
OpenStudy (luckycharms988):
i only need help.. not the anwser.
OpenStudy (anonymous):
Hey there! We meet once again! :)
OpenStudy (anonymous):
So we need to isolate 'x'
OpenStudy (anonymous):
So, should we add 6 on both sides, or should we subtract 6 on both sides?
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OpenStudy (luckycharms988):
Subtract?
OpenStudy (anonymous):
We're subtracting it, so we need to do the opposite!
OpenStudy (luckycharms988):
so add 6 to both sides?
OpenStudy (anonymous):
Yes! So what do you get? :)
OpenStudy (luckycharms988):
10x and on the otherside 11x?
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OpenStudy (luckycharms988):
or 4x instead of 10x? because 4x - 6 = -2 + 6 = back to 4
OpenStudy (anonymous):
4x - 6 + 6 = -3x + 8 + 6
4x = -3x + 8 + 6
What is 8 + 6 = ?
OpenStudy (luckycharms988):
14.
OpenStudy (anonymous):
4x = -3x + 14
Now add 3x on both sides
4x + 3x = 14
OpenStudy (luckycharms988):
7x and 17x
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OpenStudy (anonymous):
Where did you get 17x?
7x is correct
OpenStudy (luckycharms988):
ok and i got 17x from adding 3x to 14
OpenStudy (anonymous):
You cannot add 3x and 14 since 14 doesn't have any x.
OpenStudy (anonymous):
So now we have
7x = 14
Divide both sides by 7!
x = ?
OpenStudy (luckycharms988):
ok i see thx again!
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OpenStudy (luckycharms988):
oh ok
OpenStudy (luckycharms988):
14 divided by 2 is 7
OpenStudy (anonymous):
so x = 2!
OpenStudy (luckycharms988):
oh i mean 14 divided by 7 is 2
OpenStudy (luckycharms988):
yes ok thx
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OpenStudy (anonymous):
No problem! :)