pbenavides76
pbenavides76
19-08-2014
Mathematics
Answered
How do you solve 7x-5=30?
Answer :
luana
luana
19-08-2014
[tex]7x-5=30\ \ |+5\ to\ both\ sides\\\\7x=30+5\\\\7x=35\ \ |:7\\\\x=\frac{35}{7}\\\\x=5\\\\Answer\ is\ x=5.[/tex]
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Аноним
Аноним
19-08-2014
7x - 5 = 30
* add 5 to both sides
7x = 30 + 5
7x = 35
* divided both sides by 7
(7/7)x = 35/7
x = 5
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