Exercise algebra.equations.linear.balance
Description
Solve a linear equation using only balance rules.
Derivation
![](http://ideas.cs.uu.nl/images/external.png)
11*x == 4*x+8
⇒ algebra.equations.linear.balance.var-left-minus, term=4*x7*x == 8
⇒ algebra.equations.linear.balance.scale-to-one, factor=7x == 8/7