Exercise algebra.equations.linear.balance
Description
Solve a linear equation using only balance rules.
Derivation
![](http://ideas.cs.uu.nl/images/external.png)
7*x == 12*x+14
⇒ algebra.equations.linear.balance.var-left-minus, term=12*x-5*x == 14
⇒ algebra.equations.linear.balance.scale-to-one, factor=-5x == -14/5