2+3x=4y+5z
______
6
for Z... All answers are some variation of
z=12+18x+24y
_____________
5
I'm doing the line system because I was afraid it could be confused with just 5z/6 instead of 4y+5z all over 6.
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jimthompson5910 (jim_thompson5910):
you can type it like this
2+3x=(4y+5z)/6
OpenStudy (republican31):
Okay, I just wasn't sure if putting those in ()'s changed the equation at all.
jimthompson5910 (jim_thompson5910):
anyways, first you multiply both sides by 6
2+3x=(4y+5z)/6
6*(2+3x)=6*(4y+5z)/6
12+18x=4y+5z
jimthompson5910 (jim_thompson5910):
what's next?
OpenStudy (republican31):
12+18x=24y+30z?
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OpenStudy (republican31):
Then 12+18x-24y=30z, right?
OpenStudy (republican31):
Should I not have multiplied 5 and 6? Or what am I supposed to do now?
jimthompson5910 (jim_thompson5910):
when you multiply (4y+5z)/6 by 6, the two '6' terms divide to 1
1 times anything is the same number, so the '6's go away more or less
jimthompson5910 (jim_thompson5910):
(4y+5z)/6 will turn into 4y+5z after you multiply the right side by 6
OpenStudy (republican31):
Okay. So z=(12+18x-4y)/5.
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