Processing Math: Done

From Förberedande kurs i matematik 1

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