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Solution 2.2:1d

From Förberedande kurs i matematik 1

Revision as of 14:28, 16 September 2008 by Ian (Talk | contribs)
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Move x to the left-hand side by subtracting 2x from both sides,


5x+72x=2x62x


which gives


3x+7=6


Subtract 7 from both sides,


3x+77=67


so that the term 3x alone remains on the left-hand side


3x=13


Then, divide both sides by 3


33x=313


to get x:


x=313