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Solution 2.2:1c

From Förberedande kurs i matematik 1

Revision as of 14:21, 16 September 2008 by Ian (Talk | contribs)
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Because there is an x on both the left- and right-hand sides,

the first step is to subtract x3 from both sides,


31x−1−31x=x−31x


so as to collect x on the right-hand side


−1=32x


Then, multiply both sides by 32,


23−1=2332x 


so that 23 can be eliminated on the right-hand side to give us


−23=x

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