Mathematics
7 Online
OpenStudy (anonymous):
solve the equation.
6(w-5)-3w=w+10
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OpenStudy (anonymous):
distribute the 6, combine like terms, isolate w
OpenStudy (anonymous):
i need help getting past 6w-30-3w=w+10
OpenStudy (anonymous):
do i subract 3w from 6w and 3w?
OpenStudy (anonymous):
combine the ws on the left. remove the w on the right. remove the -30 on the left. then get w by itself by dividing
OpenStudy (anonymous):
so 6w and 3w are now 9w?
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jimthompson5910 (jim_thompson5910):
No, 6w minus 3w is 3w because
6w - 3w = (6-3)w = 3w
So again, 6w - 3w = 3w for all values of w
OpenStudy (anonymous):
i'm confused
jimthompson5910 (jim_thompson5910):
You have 6w-30-3w=w+10 which you can rewrite as 6w-3w-30=w+10
From here, you simplify 6w-3w to get 3w
jimthompson5910 (jim_thompson5910):
Does that make sense?
OpenStudy (anonymous):
so it's now 3w=w+10?
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jimthompson5910 (jim_thompson5910):
No it should be 3w-30=w+10
OpenStudy (anonymous):
okay now what do we do?
jimthompson5910 (jim_thompson5910):
you want to isolate w, so you want to get all the w terms on one side
jimthompson5910 (jim_thompson5910):
so why not get w on the left side
jimthompson5910 (jim_thompson5910):
3w-30=w+10
3w-30+30=w+10+30
3w+0=w+40
3w=w+40
3w-w = 40
2w = 40
2w/2 = 40/2
w = 20
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jimthompson5910 (jim_thompson5910):
Let me know if that makes sense or not.
OpenStudy (anonymous):
yes it does thanks
jimthompson5910 (jim_thompson5910):
you're welcome