Exercise algebra.equations.linear.balance
Description
Solve a linear equation using only balance rules.
Derivation
![](http://ideas.cs.uu.nl/images/external.png)
9*(7-2/3*x)-36-2*x == 0
⇒ algebra.equations.linear.balance.distribute63-6*x-36-2*x == 0
⇒ algebra.equations.linear.balance.collect27-8*x == 0
⇒ algebra.equations.linear.balance.con-right-minus, term=27-8*x == -27
⇒ algebra.equations.linear.balance.scale-to-one, factor=-8x == 27/8